Split grammar (#15)

* Move grammar parsers to entity classes

* Fix includes

* Fix Entity5 test

* Small detail

* Fix unknown keys entities

* Persistent grammar objects

* Fix grammar

* Grammar from variable

js/entity/PinEntity.js

@@ -4,6 +4,7 @@ import Configuration from "../Configuration.js"
 import EnumDisplayValueEntity from "./EnumDisplayValueEntity.js"
 import EnumEntity from "./EnumEntity.js"
 import FormatTextEntity from "./FormatTextEntity.js"
+import Grammar from "../serialization/Grammar.js"
 import GuidEntity from "./GuidEntity.js"
 import IEntity from "./IEntity.js"
 import Integer64Entity from "./Integer64Entity.js"
@@ -127,10 +128,14 @@ export default class PinEntity extends IEntity {
             default: false,
         },
     }
-
     static {
         this.cleanupAttributes(this.attributes)
     }
+    static grammar = this.createGrammar()
+
+    static createGrammar() {
+        return Grammar.createEntityGrammar(this)
+    }
 
     constructor(values = {}, suppressWarns = false) {
         super(values, suppressWarns)