Re #8570 - Messages logging
Re #8570 - Logged configuration
Re #8570 - Setted configuration of logging
Re #8570 - Implemented logger- implemented static functions (debug, info, warning, error, critical) (sorted by level)- used configuration for setting logging library
Re #8571 - Added necessary configuration
Re #8475 - Applied FlaskInjector to REST API tests
Re #8569 Added comments to connection_provider.py
Re #8569 Fixed failing pipeline
Re #8569 Added support for handling configuration files
Re #8569 Added application initialization and running dependency injection
Re #8569 Added configuration class and loading it using injector
Re #8569 connection_provider.py implementation