Combine end router modules

move version 2 endpoint definitions to single module
move version 1 endpoint definitions to single module

Author: Kilo59

app/main.py

@@ -11,8 +11,7 @@
 from fastapi.responses import JSONResponse
 
 from .data import data_source
-from .router.v1 import V1
-from .router.v2 import V2
+from .routers import V1, V2
 from .utils.httputils import setup_client_session, teardown_client_session
 
 # ############