feat/setup_events

[NeonJarbas]

refactor readiness check to handle generic setup skills and not depend specifically on pairing

this makes things event based and allows setup flows that do not require pairing

this requires latest ovos-setup skill, to test enable pairing requirement in mycroft.conf

https://github.com/OpenVoiceOS/skill-ovos-setup

[codecov]

Codecov Report

Merging #136 (90d668c) into dev (6ceb058) will increase coverage by 2.46%.
The diff coverage is 41.59%.

@@            Coverage Diff             @@
##              dev     #136      +/-   ##
==========================================
+ Coverage   50.35%   52.81%   +2.46%     
==========================================
  Files         119      150      +31     
  Lines       10077     9603     -474     
==========================================
- Hits         5074     5072       -2     
+ Misses       5003     4531     -472     

Impacted Files	Coverage Δ
mycroft/audio/__main__.py	0.00% <0.00%> (ø)
mycroft/client/enclosure/__main__.py	0.00% <0.00%> (ø)
mycroft/client/enclosure/mark1/arduino.py	0.00% <0.00%> (ø)
mycroft/client/enclosure/mark1/eyes.py	0.00% <0.00%> (ø)
mycroft/client/enclosure/mark1/mouth.py	0.00% <0.00%> (ø)
mycroft/client/speech/__main__.py	0.00% <0.00%> (ø)
mycroft/client/speech/hotword_factory.py	0.00% <0.00%> (-88.89%)	⬇️
mycroft/client/speech/service.py	0.00% <0.00%> (ø)
mycroft/client/speech/silence.py	0.00% <0.00%> (-42.86%)	⬇️
mycroft/client/text/__init__.py	0.00% <0.00%> (ø)
... and 116 more

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