Bluetooth device creation

[atrovato]

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Description of change

Prepares device creation/deletion actions on Bluetooth service

• add more efficient logs
• refactoring some code (requested by incoming Awox service).

[codecov]

Codecov Report

Merging #921 (5d2cea4) into master (a821cfa) will increase coverage by 0.10%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #921      +/-   ##
==========================================
+ Coverage   94.52%   94.62%   +0.10%     
==========================================
  Files         485      490       +5     
  Lines        6444     6494      +50     
==========================================
+ Hits         6091     6145      +54     
+ Misses        353      349       -4     

Impacted Files	Coverage Δ
...bluetooth/lib/commands/bluetooth.connectDevices.js	100.00% <100.00%> (+12.50%)	⬆️
...etooth/lib/commands/bluetooth.getCharacteristic.js	100.00% <100.00%> (ø)
.../services/bluetooth/lib/commands/bluetooth.poll.js	100.00% <100.00%> (ø)
...ces/bluetooth/lib/commands/bluetooth.postCreate.js	100.00% <100.00%> (ø)
...ces/bluetooth/lib/commands/bluetooth.postDelete.js	100.00% <100.00%> (ø)
...ces/bluetooth/lib/commands/bluetooth.readDevice.js	100.00% <100.00%> (ø)
...ces/bluetooth/lib/commands/bluetooth.scanDevice.js	100.00% <100.00%> (+3.33%)	⬆️
...luetooth/lib/commands/bluetooth.subscribeDevice.js	100.00% <100.00%> (ø)
...etooth/lib/commands/bluetooth.unsubscribeDevice.js	100.00% <100.00%> (ø)
...es/bluetooth/lib/commands/bluetooth.writeDevice.js	100.00% <100.00%> (ø)
... and 15 more

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[Pierre-Gilles]

Thanks for the PR, this is really great!