Add basic package managing plumbing

projects/common/src/fm/services/package.service.ts

@@ -0,0 +1,24 @@
+import { Injectable } from '@angular/core';
+import { Store} from '@ngrx/store';
+import * as appCommonReducer from '../reducers/app-common.reducer'
+import { IPackages } from '../models/package';
+
+
+@Injectable({
+  providedIn: 'root',
+})
+
+export class PackageService {
+    private packages$:IPackages = {};
+
+    constructor(private store$: Store<appCommonReducer.State>) {
+        store$.select(appCommonReducer.SelectGetUserPackages).subscribe((packages) => {
+            this.packages$ = packages;
+        })
+    }
+
+    hasPackage(id:string):boolean {
+       if(!this.packages$[id]) return false;
+       return this.packages$[id].enabled == true;
+    }
+}