Add mixer capability checks

[emphasize]

Taken from a @goldyfruit matrix conversation

deplovment method: docker
sound device: Google Voice HAT

2023-12-19 18:32:03.734 - PHAL - ovos_bus_client.session:from_message:471 - WARNING - No session context in message:mycroft.volume.get
2023-12-19 18:32:03.737 - PHAL - ovos_bus_client.session:from_message:472 - DEBUG - Update ovos-bus-client or add `session` to `message.context` where emitted. context={}
exception calling callback for <Future at 0x7fa61bff90 state=finished raised ALSAAudioError>
Traceback (most recent call last):
  File "/usr/lib/python3.11/concurrent/futures/_base.py", line 340, in _invoke_callbacks
    callback(self)
  File "/home/ovos/.venv/lib/python3.11/site-packages/pyee/_executor.py", line 57, in _callback
    self.emit("error", exc)
  File "/home/ovos/.venv/lib/python3.11/site-packages/pyee/_base.py", line 118, in emit
    self._emit_handle_potential_error(event, args[0] if args else None)
  File "/home/ovos/.venv/lib/python3.11/site-packages/pyee/_base.py", line 88, in _emit_handle_potential_error
    raise error
  File "/usr/lib/python3.11/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ovos/.venv/lib/python3.11/site-packages/ovos_PHAL_plugin_alsa/__init__.py", line 113, in handle_volume_request
    "muted": self.alsa.is_muted()}))
             ^^^^^^^^^^^^^^^^^^^^
  File "/home/ovos/.venv/lib/python3.11/site-packages/ovos_PHAL_plugin_alsa/__init__.py", line 223, in is_muted
    return bool(self.mixer.getmute()[0])
                ^^^^^^^^^^^^^^^^^^^^
alsaaudio.ALSAAudioError: Mixer Master,0 has no playback switch capabilities, [default]

Add capability checks to prevent this behaviour

[goldyfruit]

Got this one as well when trying to save the STT audio file.

2023-12-21 10:14:37.262 - HiveMind-voice-sat - ovos_dinkum_listener.service:_hotword_audio:600 - ERROR - Error while saving STT audio
Traceback (most recent call last):
  File "/home/hivemind/.venv/lib/python3.11/site-packages/ovos_dinkum_listener/service.py", line 572, in _hotword_audio
    self.bus.emit(Message("mycroft.audio.play_sound",
  File "/home/hivemind/.venv/lib/python3.11/site-packages/hivemind_bus_client/client.py", line 277, in emit
    self.internal_bus.emit(message.payload)
  File "/home/hivemind/.venv/lib/python3.11/site-packages/ovos_utils/messagebus.py", line 61, in emit
    self.ee.emit(message.msg_type, message)
  File "/home/hivemind/.venv/lib/python3.11/site-packages/pyee/_base.py", line 115, in emit
    handled = self._call_handlers(event, args, kwargs)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/hivemind/.venv/lib/python3.11/site-packages/pyee/_base.py", line 98, in _call_handlers
    self._emit_run(f, args, kwargs)
  File "/home/hivemind/.venv/lib/python3.11/site-packages/pyee/_base.py", line 83, in _emit_run
    f(*args, **kwargs)
  File "/home/hivemind/.venv/lib/python3.11/site-packages/ovos_audio/service.py", line 484, in handle_instant_play
    volume_poll: Message = self.bus.wait_for_response(Message("mycroft.volume.get"))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/hivemind/.venv/lib/python3.11/site-packages/hivemind_bus_client/client.py", line 381, in wait_for_response
    self.emit(message)
  File "/home/hivemind/.venv/lib/python3.11/site-packages/hivemind_bus_client/client.py", line 277, in emit
    self.internal_bus.emit(message.payload)
  File "/home/hivemind/.venv/lib/python3.11/site-packages/ovos_utils/messagebus.py", line 61, in emit
    self.ee.emit(message.msg_type, message)
  File "/home/hivemind/.venv/lib/python3.11/site-packages/pyee/_base.py", line 115, in emit
    handled = self._call_handlers(event, args, kwargs)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/hivemind/.venv/lib/python3.11/site-packages/pyee/_base.py", line 98, in _call_handlers
    self._emit_run(f, args, kwargs)
  File "/home/hivemind/.venv/lib/python3.11/site-packages/pyee/_base.py", line 83, in _emit_run
    f(*args, **kwargs)
  File "/home/hivemind/.venv/lib/python3.11/site-packages/ovos_PHAL_plugin_alsa/__init__.py", line 113, in handle_volume_request
    "muted": self.alsa.is_muted()}))
             ^^^^^^^^^^^^^^^^^^^^
  File "/home/hivemind/.venv/lib/python3.11/site-packages/ovos_PHAL_plugin_alsa/__init__.py", line 223, in is_muted
    return bool(self.mixer.getmute()[0])
                ^^^^^^^^^^^^^^^^^^^^
alsaaudio.ALSAAudioError: Mixer Master,0 has no playback switch capabilities, [default]

[goldyfruit]

👍