Finished application configuration integration
	- [CHANGE] changed scene and windows values in configuration file
	- [CHANGE] finished AppConfig class
	- [CHANGE] finished data collection class
Source Code Documentation Maintenance
	- [NEW] added doxygen configuration file
	- [CHANGE] added doc directory to gitignore file
	- [CHANGE] updated source code documentation
Source Code Documentation Maintenance
	- [CHANGE] updated doxygen configuration file
Source Code Documentation Maintenance
	- [CHANGE] updated doxygen configuration file
Logging Improvements
	- [CHANGE] improved logger class
	- [CHANGE] changed log handling via streams to logger class