Refactor the logging and add support for the use of a log-config file

[adybbroe]

With this PR it shall be possible to run e.g. the move_it_client.py script with a log-config file defining the log-handlers etc. For instance like this:

python bin/move_it_client.py -c </path/to/my/log/config/file/>/log_config.yaml ./example_move_it_client.cfg

I have also tried to refactor the logging support a bit collecting it in a logging.py module.

But I might need some help soritng out the continuous support of the logging without providing a log-config yaml file!

• Closes #xxxx
• Tests added
• Fully documented
• Add your name to AUTHORS.md if not there already

[codecov]

Codecov Report

Merging #122 (fe10b29) into main (662d86a) will decrease coverage by 0.27%.
The diff coverage is 90.81%.

@@            Coverage Diff             @@
##             main     #122      +/-   ##
==========================================
- Coverage   77.90%   77.63%   -0.28%     
==========================================
  Files          18       19       +1     
  Lines        4001     3814     -187     
==========================================
- Hits         3117     2961     -156     
+ Misses        884      853      -31     

Flag	Coverage Δ
unittests	77.63% <90.81%> (-0.28%)	⬇️

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

Impacted Files	Coverage Δ
trollmoves/move_it_base.py	23.71% <20.00%> (+2.08%)	⬆️
trollmoves/logger.py	88.63% <88.63%> (ø)
trollmoves/tests/test_logger.py	100.00% <100.00%> (ø)
trollmoves/dispatcher.py

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