Refactor Editor and module functions (#15)

Moved all module functions to separate utils modules

Replaced standard with standard with typescript

Extracted UI elements to separate component

Reviewed-on: https://git.siklos-chaneru.duckdns.org/Siklos/svg-layout-designer-react/pulls/15

src/Enums/AddingBehavior.ts

@@ -1,4 +1,4 @@
 export enum AddingBehavior {
-    InsertInto,
-    Replace
+  InsertInto,
+  Replace
 }