feat: add manage surveys component (#343)

Fixes #186

src/app/system/manage-surveys/manage-surveys.resolver.ts

@@ -0,0 +1,30 @@
+/** Angular Imports */
+import { Injectable } from '@angular/core';
+import { Resolve } from '@angular/router';
+
+/** rxjs Imports */
+import { Observable } from 'rxjs';
+
+/** Custom Services */
+import { SystemService } from '../system.service';
+
+/**
+ * Surveys data resolver.
+ */
+@Injectable()
+export class ManageSurveysResolver implements Resolve<Object> {
+
+  /**
+   * @param {SystemService} systemService System service.
+   */
+  constructor(private systemService: SystemService) {}
+
+  /**
+   * Returns the Surveys data.
+   * @returns {Observable<any>}
+   */
+  resolve(): Observable<any> {
+    return this.systemService.getSurveys();
+  }
+
+}