Add flush for queue flushing
Add set/get level for handler
Allow adding handlers during launch, handlers cannot be added afterwards at the moment
Add testing for LoggingLevel enum
Add all logging levels as Enum class type (same as for the PHP CoreLibs Logging)
Add a new method to get the log level as int with fallback via the LoggingLevel Enum
in the QueueLister launcher add "respect_handler_level=True" so it respects the previous set log levels per handler
Also split all logging tests into their own file
enables Queues if multiprocessing.Queue() is set in the "log_queue" setting
Now a logger "Log.init_worker_logging" can be attached to the ProcessPoolExecutor,
the init args must be the log_queue set
example:
```py
with concurrent.futures.ProcessPoolExecutor(
max_workers=max_forks,
initializer=Log.init_worker_logging,
initargs=(log_queue,)
) as executor:
````
Move all settings into a settings argument, the structure is defined in LogSettings.
Default settings are in Log.DEFAULT_LOG_SETTINGS
Only log path and log name are parameters
Color output for console is on default enabled, disable via "console_color_output_enabled"
The complete console output can be stopped with "console_enabled"
