added a possible constructor as comment
the TestConfig can now be used to create a TestModule of DjinTestModule
Tested ConfigManagement
Implemented the ConfigManagement.
The ConfigManager will get the instance of a ConfigHandler by calling the ConfigHandlerFactory.

All necessary methods of a ConfigHandler are defined in IConfigHandler.cs.
These Methods are necessary to do the most basic things with the config.

XmlConfigHandler is the implementation of a configHandler which is capable of using XMLs.