refactor: make data list reusable component

Closes #98

src/app/modules/data/data-routing.service.ts

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2021 StApps
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+import {Injectable} from '@angular/core';
+import {SCThings} from '@openstapps/core';
+import {Subject} from 'rxjs';
+
+/**
+ * Transmits event of data selection
+ */
+@Injectable({
+  providedIn: 'root',
+})
+export class DataRoutingService {
+  /**
+   * Provides the thing that was selected
+   */
+  private childSelectedEvent = new Subject<SCThings>();
+
+  /**
+   * Provides the thing that was selected
+   *
+   * @param thing The selected thing
+   */
+  emitChildEvent(thing: SCThings) {
+     this.childSelectedEvent.next(thing);
+  }
+
+  /**
+   * Provides a listener for the event
+   */
+  itemSelectListener() {
+    return this.childSelectedEvent.asObservable();
+  }
+}