Starting on the pixelEditor. Fixing state reset issue when moving stateful components in the store path. adding hasField host function

src/runtime-js.ts

@@ -92,6 +92,9 @@ export const _rt = {
         }
         return { _tag: qi === q.length ? 'True' : 'False' };
     },
+    hasField: (field: string) => (obj: any) => ({
+        _tag: (typeof obj === 'object' && obj !== null && field in obj) ? 'True' : 'False'
+    }),
     storeSearch: (query: string) => {
         return Object.keys(store).filter(name => _rt.fuzzyMatch(query)(name)._tag === 'True');
     },