Colorize logs

[mano8]

Changes:

• colorize logs
• add workers error message on initialization if worker is not ready
• correct some bugs

[mano8]

ok

[codecov]

Codecov Report

Attention: Patch coverage is 28.20513% with 28 lines in your changes missing coverage. Please review.

Files	Coverage Δ
vemonitor_m8/apps/async_app_run.py	23.03% <0.00%> (-0.25%)	⬇️
vemonitor_m8/workers/vedirect_worker.py	39.13% <25.00%> (-0.87%)	⬇️
vemonitor_m8/workers/emoncms_worker.py	39.43% <14.28%> (-2.11%)	⬇️
vemonitor_m8/workers/redis_worker.py	0.00% <0.00%> (ø)
vemonitor_m8/__init__.py	41.26% <47.36%> (+4.31%)	⬆️