Niagara and Metasound nodes WIP

* Keep track of entities

* Fix renaming

* Niagara variables wip

* Several niagara decode and test

* Move nodeTemplate code to dedicated file, self node added

* Move node decoding functions to dedicated files

* Move pin decoding logic to dedicated files

* Accept space separated keys in objects

* Build

* Prevent a crash in case of incomplete object

* Avoid creating objects unnecessarily

* types formatting

* Initial metasound style

* Common pcg nodes colors

* Fix string serialization

* Metasound new styles and fixes

* More metasound styles and colors

* WIP

* Several fixes

* More tests and fixes

* Clean gitignore

tests/resources/serializedEntity2.js

@@ -5,7 +5,7 @@ export default `{
     someBoolean: True
     someBoolean2: False
     someObjectString: "gamma"
-    someArray: (400,500,600,700,800,)
-    someArray2: (400,500,600,700,800,)
+    someArray: (400,500,600,700,800)
+    someArray2: (400,500,600,700,800)
     someEntity: Entity1(a=8, b=9)
 }`