added optional global AppAPIAuth middleware

[bigcat88]

For some applications it will be useful to simply set global authentication to all endpoints and not write in each endpoint:

New:

APP = FastAPI(lifespan=lifespan)
APP.add_middleware(ex_app.AppAPIAuthMiddleware)

Old:

@APP.post("/verify_initial_value")
async def verify_initial_value(
    _nc: typing.Annotated[NextcloudApp, Depends(nc_app)],   # <---- this is no needed when using new Global Middleware
    input1: Button1Format,
):
    print("Old value: ", input1.initial_value)
    return responses.JSONResponse(content={"initial_value": str(random.randint(0, 100))}, status_code=200)

Limitations:

Talk bots endpoints using another Auth type, and they should be added to disable_for parameter of AppAPIAuthMiddleware.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (1061622) 99.85% compared to head (027f6ed) 99.85%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #205   +/-   ##
=======================================
  Coverage   99.85%   99.85%           
=======================================
  Files          40       40           
  Lines        4701     4726   +25     
=======================================
+ Hits         4694     4719   +25     
  Misses          7        7           

Files	Coverage Δ
nc_py_api/_session.py	100.00% <100.00%> (ø)
nc_py_api/_version.py	100.00% <100.00%> (ø)
nc_py_api/ex_app/__init__.py	100.00% <ø> (ø)
nc_py_api/ex_app/integration_fastapi.py	100.00% <100.00%> (ø)
nc_py_api/nextcloud.py	98.67% <100.00%> (ø)