Fix StreamView Position property

Setting the position past the length is expected to increase the length
of the stream.

sources/OpenMcdf/StreamView.cs

@@ -63,18 +63,8 @@ public override void Flush()
 
         public override long Position
         {
-            get
-            {
-                return position;
-            }
-
-            set
-            {
-                if (position > length - 1)
-                    throw new ArgumentOutOfRangeException(nameof(value));
-
-                position = value;
-            }
+            get => position;
+            set => Seek(value, SeekOrigin.Begin);
         }
 
         public override int Read(byte[] buffer, int offset, int count)
@@ -184,7 +174,7 @@ public override long Seek(long offset, SeekOrigin origin)
                     break;
             }
 
-            if (length <= position) // Don't adjust the length when position is inside the bounds of 0 and the current length.
+            if (position > length)
                 AdjustLength(position);
 
             return position;