Fix missing attribute on C# DOrtGetResizedStringTensorElementBuffer d…

…elegate (microsoft#17901)

### Description
<!-- Describe your changes. -->
Fix missing attribute. Causes build error on release xamarin iOS build.

Fix some long lines as well.

### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->
microsoft#16463 - once the dummy extensions nuget package is used this problem
shows up.

csharp/src/Microsoft.ML.OnnxRuntime/NativeMethods.shared.cs

@@ -1860,54 +1860,61 @@ IntPtr[] outputValues /* An array of output value pointers. Array must be alloca
 
         public static DOrtFillStringTensor OrtFillStringTensor;
 
+        /// \param value A tensor created from OrtCreateTensor... function.
+        /// \param index The index of the entry in the tensor to resize. <summary>
+        /// \param length_in_bytes Length to resize the string to.
+        /// \param buffer The resized buffer.
+        [UnmanagedFunctionPointer(CallingConvention.Winapi)]
         public delegate IntPtr /*(OrtStatus*)*/ DOrtGetResizedStringTensorElementBuffer(
-                IntPtr /* OrtValue */ value,
-                UIntPtr /* size_t */ index,
-                UIntPtr /* size_t */ length_in_bytes,
-                out IntPtr /* char** */ buffer
-            );
+            IntPtr /* OrtValue */ value,
+            UIntPtr /* size_t */ index,
+            UIntPtr /* size_t */ length_in_bytes,
+            out IntPtr /* char** */ buffer);
 
         public static DOrtGetResizedStringTensorElementBuffer OrtGetResizedStringTensorElementBuffer;
 
         [UnmanagedFunctionPointer(CallingConvention.Winapi)]
         public delegate IntPtr /*(OrtStatus*)*/ DOrtGetStringTensorContent(
-                                                        IntPtr /*(OrtValue*)*/ value,
-                                                        byte[] /*(void*)*/  dst_buffer,
-                                                        UIntPtr dst_buffer_len,
-                                                        UIntPtr[] offsets,
-                                                        UIntPtr offsets_len);
+            IntPtr /*(OrtValue*)*/ value,
+            byte[] /*(void*)*/  dst_buffer,
+            UIntPtr dst_buffer_len,
+            UIntPtr[] offsets,
+            UIntPtr offsets_len);
 
         public static DOrtGetStringTensorContent OrtGetStringTensorContent;
 
         [UnmanagedFunctionPointer(CallingConvention.Winapi)]
         public delegate IntPtr /*(OrtStatus*)*/ DOrtGetStringTensorDataLength(IntPtr /*(OrtValue*)*/ value,
-                                                        out UIntPtr /*(size_t*)*/ len);
+                                                                              out UIntPtr /*(size_t*)*/ len);
 
         public static DOrtGetStringTensorDataLength OrtGetStringTensorDataLength;
 
         [UnmanagedFunctionPointer(CallingConvention.Winapi)]
         public delegate IntPtr /*(OrtStatus*)*/ DOrtGetStringTensorElementLength(IntPtr /*(OrtValue*)*/ value,
-                                                        UIntPtr /*(size_t)*/ index,
-                                                        out UIntPtr /*(size_t*)*/ len);
+                                                                                 UIntPtr /*(size_t)*/ index,
+                                                                                 out UIntPtr /*(size_t*)*/ len);
 
         public static DOrtGetStringTensorElementLength OrtGetStringTensorElementLength;
 
         [UnmanagedFunctionPointer(CallingConvention.Winapi)]
         public delegate IntPtr /*(OrtStatus*)*/ DOrtGetStringTensorElement(IntPtr /*(OrtValue*)*/ value,
-                                                UIntPtr /*(size_t)*/ bufferLength,
-                                                UIntPtr /*(size_t)*/ elementIndex,
-                                                byte[] buffer);
+                                                                           UIntPtr /*(size_t)*/ bufferLength,
+                                                                           UIntPtr /*(size_t)*/ elementIndex,
+                                                                           byte[] buffer);
 
         public static DOrtGetStringTensorElement OrtGetStringTensorElement;
 
         [UnmanagedFunctionPointer(CallingConvention.Winapi)]
-        public delegate IntPtr /*(OrtStatus*)*/
-                                DOrtCastTypeInfoToTensorInfo(IntPtr /*(struct OrtTypeInfo*)*/ typeInfo, out IntPtr /*(const struct OrtTensorTypeAndShapeInfo**)*/ typeAndShapeInfo);
+        public delegate IntPtr /*(OrtStatus*)*/ DOrtCastTypeInfoToTensorInfo(
+            IntPtr /*(struct OrtTypeInfo*)*/ typeInfo,
+            out IntPtr /*(const struct OrtTensorTypeAndShapeInfo**)*/ typeAndShapeInfo);
 
         public static DOrtCastTypeInfoToTensorInfo OrtCastTypeInfoToTensorInfo;
 
         [UnmanagedFunctionPointer(CallingConvention.Winapi)]
-        public delegate IntPtr /*(OrtStatus*)*/ DOrtGetTensorTypeAndShape(IntPtr /*(OrtValue*)*/ value, out IntPtr /*(struct OrtTensorTypeAndShapeInfo*)*/ typeAndShapeInfo);
+        public delegate IntPtr /*(OrtStatus*)*/ DOrtGetTensorTypeAndShape(
+            IntPtr /*(OrtValue*)*/ value, 
+            out IntPtr /*(struct OrtTensorTypeAndShapeInfo*)*/ typeAndShapeInfo);
 
         public static DOrtGetTensorTypeAndShape OrtGetTensorTypeAndShape;
 
@@ -1917,12 +1924,16 @@ out IntPtr /* char** */ buffer
         public static DOrtReleaseTensorTypeAndShapeInfo OrtReleaseTensorTypeAndShapeInfo;
 
         [UnmanagedFunctionPointer(CallingConvention.Winapi)]
-        public delegate IntPtr /*(OrtStatus*)*/ DOrtGetTensorElementType(IntPtr /*(const struct OrtTensorTypeAndShapeInfo*)*/ typeAndShapeInfo, out IntPtr /*(TensorElementType*)*/ output);
+        public delegate IntPtr /*(OrtStatus*)*/ DOrtGetTensorElementType(
+            IntPtr /*(const struct OrtTensorTypeAndShapeInfo*)*/ typeAndShapeInfo,
+            out IntPtr /*(TensorElementType*)*/ output);
 
         public static DOrtGetTensorElementType OrtGetTensorElementType;
 
         [UnmanagedFunctionPointer(CallingConvention.Winapi)]
-        public delegate IntPtr /*(OrtStatus*)*/ DOrtGetDimensionsCount(IntPtr /*(const struct OrtTensorTypeAndShapeInfo*)*/ typeAndShapeInfo, out UIntPtr output);
+        public delegate IntPtr /*(OrtStatus*)*/ DOrtGetDimensionsCount(
+            IntPtr /*(const struct OrtTensorTypeAndShapeInfo*)*/ typeAndShapeInfo, 
+            out UIntPtr output);
 
         public static DOrtGetDimensionsCount OrtGetDimensionsCount;