add setHttpClient method on android target

Author: danielpsantiago

sdkgen

@@ -351,6 +351,10 @@ END
         return Internal.getHttpClient();
     }
 
+    static public void setHttpClient(OkHttpClient newClient) {
+        Internal.setHttpClient(newClient);
+    }
+
     static public void setApiUrl(String url) {
         Internal.forcedUrl = url;
     }
@@ -428,6 +432,10 @@ END
             return http;
         }
 
+        static void setHttpClient(OkHttpClient newClient) {
+            http = newClient;
+        }
+
         static void createHttpClient() {
             connectionPool = new ConnectionPool(100, 45, TimeUnit.SECONDS);