Create DevelopmentStore.ts

- Added DevStore for easy baseURL change for developement

frontend/src/store/DevelopmentStore.ts

@@ -0,0 +1,21 @@
+import { Injectable } from '@angular/core';
+import { BehaviorSubject } from 'rxjs';
+import { map } from 'rxjs/operators';
+
+interface DevelopmentStoreState {
+  baseUrl: string;
+}
+
+@Injectable({
+  providedIn: 'root'
+})
+export class DevelopmentStore {
+  private state: BehaviorSubject<DevelopmentStoreState> = new BehaviorSubject<DevelopmentStoreState>({
+    baseUrl: 'http://localhost/',
+  });
+
+
+  get baseUrl() {
+    return this.state.asObservable().pipe(map(state => state.baseUrl));
+  }
+}