Add mocked broker client

Hcs.Broker.Mock/Api/MockDeviceMeteringApi.cs

@@ -0,0 +1,26 @@
+using Hcs.Broker.Api;
+using Hcs.Broker.Api.Payload.DeviceMetering;
+using Hcs.Service.Async.DeviceMetering;
+
+namespace Hcs.Broker.Mock.Api
+{
+    /// <inheritdoc cref="IDeviceMeteringApi"/>
+    public class MockDeviceMeteringApi : IDeviceMeteringApi
+    {
+        /// <inheritdoc cref="IDeviceMeteringApi"/>
+        public async Task<IEnumerable<exportMeteringDeviceHistoryResultType>> ExportMeteringDeviceHistoryAsync(ExportMeteringDeviceHistoryPayload payload, CancellationToken token = default)
+        {
+            await Task.Delay(3000, token);
+
+            return [];
+        }
+
+        /// <inheritdoc cref="IDeviceMeteringApi"/>
+        public async Task<bool> ImportMeteringDeviceValuesAsync(importMeteringDeviceValuesRequestMeteringDevicesValues values, CancellationToken token = default)
+        {
+            await Task.Delay(3000, token);
+
+            return true;
+        }
+    }
+}