Add EditorConfig file (#911)

Author: Pliner

.editorconfig

@@ -0,0 +1,16 @@
+root = true
+
+[*]
+trim_trailing_whitespace = true
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+
+[*.{csproj,json,config,yml}]
+indent_size = 2
+
+[*.sh]
+end_of_line = lf
+
+[*.{cmd, bat}]
+end_of_line = crlf