added .editorconfig

Author: ericnewton76

.editorconfig

@@ -0,0 +1,26 @@
+#top-most EditorConfig for project
+root = true
+
+[*]
+end_of_line = crlf
+insert_final_newline = true
+
+[*.cs]
+indent_style = space
+indent_size = 4
+
+[*.{xml,csproj,config}]
+indent_style = tab
+indent_size = 4
+
+[*.json]
+indent_style = space
+indent_size = 2
+
+[*.js]
+indent_style = space
+indent_size = 2
+
+[*.yml]
+indent_style = space
+indent_size = 2