Wrap types in namespace for --ts-flat-files and --gen-all (#7451)

* Wrap types in namespace for --ts-flat-files and --gen-all

* Fixes for escaping object types

* Added to generate_code

tests/my-game/example/test.js

@@ -24,7 +24,7 @@ export class Test {
         return true;
     }
     static getFullyQualifiedName() {
-        return 'MyGame.Example.Test';
+        return 'MyGame_Example_Test';
     }
     static sizeOf() {
         return 4;