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/ScriptVariableEntity.js

@@ -0,0 +1,25 @@
+import Grammar from "../serialization/Grammar.js"
+import AttributeInfo from "./AttributeInfo.js"
+import GuidEntity from "./GuidEntity.js"
+import IEntity from "./IEntity.js"
+import ObjectReferenceEntity from "./ObjectReferenceEntity.js"
+
+export default class ScriptVariableEntity extends IEntity {
+
+    static attributes = {
+        ...super.attributes,
+        ScriptVariable: AttributeInfo.createType(ObjectReferenceEntity),
+        OriginalChangeId: AttributeInfo.createType(GuidEntity),
+    }
+    static grammar = this.createGrammar()
+
+    static createGrammar() {
+        return Grammar.createEntityGrammar(this)
+    }
+
+    constructor(values = {}, suppressWarns = false) {
+        super(values, suppressWarns)
+        /** @type {ObjectReferenceEntity} */ this.ScriptVariable
+        /** @type {GuidEntity} */ this.OriginalChangeId
+    }
+}