SZP014: Enable possibility for user to set logging level using config file

[vendral]

Create config.ini file which will serve a purpose of configuration interface between user and application. Create a field LOG_LEVEL= which can be set by user and read by app during startup (and apply to set logging level).

Consider using configparser lib: https://docs.python.org/3/library/configparser.html

[Jarogniev]

I have a question,

• 'config.ini' file should be like 'Logger.py', separate '.py' file? with everything related to log configuration?

[vendral]

Config file should be a text file with extension: .ini, not .py.

Location of the file: szperacz/szperacz/config.ini (same place as logger.py)

At the moment only logging-related configuration entry shall be there, however some other fields can be added later on.

[vendral]

Done