added campaigns availability request

@@ -100,6 +100,17 @@ public interface ApiService {
                                     @Header(WarpConstants.HEADER_SIGNATURE) String signature);
 
     @Headers("Content-Type: application/json")
+    @POST("/api/mobile/v2/{appUuid}/context/")
+    Call<ResponseBody> getCampaignsAvailability(@Path("appUuid") String appUuid,
+                                    @Body RequestBody request,
+                                    @Header(WarpConstants.HEADER_DATE) String timeStamp,
+                                    @Header(WarpConstants.HEADER_LOYALTY_BUNDLE_ID) String bundleId,
+                                    @Header(WarpConstants.HEADER_UNIQUE_DEVICE_ID) String deviceId,
+                                    @Header(WarpConstants.HEADER_CHANNEL) String channel,
+                                    @Header(WarpConstants.HEADER_WEB_ID) String webId,
+                                    @Header(WarpConstants.HEADER_SIGNATURE) String signature);
+
+    @Headers("Content-Type: application/json")
     @POST("/oauth/{appUuid}/context")
     Call<ResponseBody> getCampaignsPersonalized(@Path("appUuid") String appUuid,
                                                 @Body RequestBody request,