implement Broadcast and SessionManager services

Services/BroadcastMethods.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Threading.Tasks;
+using Chtn.CSharp.SDK.Core;
+using Chtn.CSharp.SDK.Models.Call;
+
+namespace Chtn.CSharp.SDK.Services
+{
+    public interface IBroadcastService
+    {
+        Task<StreamRegistry> GetData(GetRtmpDataReq req);
+        Task CreateService(CreateServerReq req);
+        Task JoinWebSocketRoom(BroadcastJoinWsRoomReq req);
+    }
+
+    public class BroadcastServiceProvider : IBroadcastService
+    {
+        private readonly ApiClient _apiClient;
+
+        public BroadcastServiceProvider(ApiClient apiClient)
+        {
+            _apiClient = apiClient ?? throw new ArgumentNullException(nameof(apiClient));
+        }
+
+        public async Task<StreamRegistry> GetData(GetRtmpDataReq req) =>
+            await _apiClient.PostAsync<GetRtmpDataReq, StreamRegistry>("network/channel/rtmpData", req);
+        public async Task CreateService(CreateServerReq req) =>
+    await _apiClient.PostAsync<CreateServerReq, object>("network/channel/createServer", req);
+
+        public async Task JoinWebSocketRoom(BroadcastJoinWsRoomReq req) =>
+    await _apiClient.PostAsync<BroadcastJoinWsRoomReq, object>("v2/network/channel/joinWebSocketRoom", req);
+    }
+}