Add sample request using api client

app.py

@@ -1,7 +1,9 @@
-import os
-
+from dotenv import load_dotenv
 from flask import Flask
 
+from dto.requests import GameStartRequest
+from services.julius_baer_api_client import JuliusBaerApiClient
+
 app = Flask(__name__)
 
 
@@ -11,4 +13,9 @@ def hello_world():  # put application's code here
 
 
 if __name__ == '__main__':
+    jb_client = JuliusBaerApiClient()
+    game_start_request = GameStartRequest("Welch")
+    res = jb_client.start_game(game_start_request)
+    print(res)
+
     app.run()