add repository methods to clear all data

src/repositories/UnoptimizedInMemoryRepository.ts

@@ -147,4 +147,28 @@ export class UnoptimizedInMemoryRepository implements GetterSetterRepository {
       this.etas.push(eta);
     }
   }
+
+  public async clearSystemData() {
+    this.systems = [];
+  }
+
+  public async clearShuttleData(): Promise<void> {
+    this.shuttles = [];
+  }
+
+  public async clearEtaData(): Promise<void> {
+    this.etas = [];
+  }
+
+  public async clearOrderedStopData(): Promise<void> {
+    this.orderedStops = [];
+  }
+
+  public async clearRouteData(): Promise<void> {
+    this.routes = [];
+  }
+
+  public async clearStopData(): Promise<void> {
+    this.stops = [];
+  }
 }