PCG nodes and other fixes (#14)

* Various fixes

* Fix name from SettingsInterface

* Allow path lookbehind for unknown keys entity

* Subraph object name

* Several fixes

* Various fixes

* Fix colors

* Various pin types

js/entity/VariableReferenceEntity.js

@@ -4,6 +4,7 @@ import GuidEntity from "./GuidEntity.js"
 export default class VariableReferenceEntity extends IEntity {
 
     static attributes = {
+        ...super.attributes,
         MemberScope: {
             type: String,
         },