## Description:
More fixes flagged by pylint 2 that don't hurt to have before the actual pylint 2 upgrade (which I'll submit soon).
## Checklist:
- [ ] The code change is tested and works locally.
- [x] Local tests pass with `tox`. **Your PR cannot be merged unless tests pass**
* Remove setting up an hbmqtt broker
* Don't pass loop to web.Application in tests
* Use .query instead of deprecated .GET for aiohttp requests
* Fix closing file resource
* Do not use asyncio mark
* Notify.html5 - PyJWT: Use options to disable verify
* Yamaha: Test was still using deprecated ip
* Remove pytest-asyncio
This makes it so that media playback support for inputs is dynamically
fetched from the receiver, instead of assuming that all playback
commands work for all inputs.
Tests are added for this, using a FakeYamaha class, which has some
sample data stubbed in for key methods that need to be called. We also
include an example of the desc.xml needed to dynamically parse these
features for these tests (as this is done in platform init).