Finished reimplementing original maitl functionality
 Changes to be committed:
	modified:   nixtla/__init__.py
	modified:   nixtla/core/annotation/elan.py
	new file:   nixtla/core/annotation/markers.py
	modified:   nixtla/core/module_parser.py
	modified:   nixtla/core/tools/model/concurrent_history.py
	modified:   nixtla/core/tools/model/rules.py
	modified:   nixtla/res/config.ini
	modified:   nixtla/res/database.ini
	modified:   nixtla/verification/simple_method/adapters.py
	modified:   nixtla/verification/simple_method/implementation.py