example .editorconfig for consistent coding style

.editorconfig

@@ -0,0 +1,15 @@
+# top-most https://EditorConfig.org file
+root = true
+
+# Unix-style newlines with a newline ending every file
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+
+[*.{java,xml}]
+charset = utf-8
+indent_style = space
+indent_size = 4
+continuation_indent_size = 8