Add configurable log level

[Mateusz-Grzelinski]

In this PR

• add settings blender.addon.logLevel and blender.addon.logLevelGlobal
• disable flask logs unless blender.addon.logLevelGlobal is set to debug
• add colors
• set default levels to
  • blender.addon.logLevelGlobal = warning
  • blender.addon.logLevel = info
• changing log level required blender restart
• our logger should not affect external loggers
• convert every print to log
• in future we might need a list of specific third party loggers to enable but i dont think it is needed now.

this is log produced by default log level config:

This is log level produced by blender.addon.logLevel = debug

And this is everithing set to debug: