Device detection

[mkinney]

a lot of research on what our devices report in various operating systems (mac, ubuntu, win10)

added a supported_device class and a collection of supported devices

now, we can see if the device(s) are on the supported list - needs more work like T-Echo and DIY

[codecov]

Codecov Report

Merging #249 (72326d4) into master (069056e) will decrease coverage by 5.24%.
The diff coverage is 25.32%.

@@            Coverage Diff             @@
##           master     #249      +/-   ##
==========================================
- Coverage   94.27%   89.02%   -5.25%     
==========================================
  Files          12       13       +1     
  Lines        1869     2023     +154     
==========================================
+ Hits         1762     1801      +39     
- Misses        107      222     +115     

Flag	Coverage Δ
unittests	89.02% <25.32%> (-5.25%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
meshtastic/util.py	71.88% <6.45%> (-26.18%)	⬇️
meshtastic/supported_device.py	38.04% <38.04%> (ø)

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[mkinney]

Going to merge this PR and add tests later - want to use this code in the Meshtastic-flasher