Tchao Bye bye the token file

[cyr-ius]

I am the author of the livebox and bouygue api and I propose this redesign, which consists of deleting the token file
You will first have to pass the parameters directly when instantiating the class.
Then make a call to register_app to retrieve the app_token
Once this is done, make a call to the open method and pass the token.

An advantage: the register_app function allows you to retrieve the app_token and possibly save it somewhere, for example in HomeAssistant directly in the config_entry.

All the parameters of the old file can be passed when instantiating the class.

Example:
fbx = Freepybox()
app_token = await fbx.register_app()
await fbx.open(app_token)

I took the opportunity to add the option to use HTTPS or not as well as the verification or not of the certificate.

Fix issue #734