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

js/entity/InvariantTextEntity.js

@@ -37,4 +37,8 @@ export default class InvariantTextEntity extends IEntity {
         super(values)
         /** @type {String} */ this.value
     }
+
+    toString() {
+        return this.value
+    }
 }