Introduced validators and validator strategies
Fixed: corrected archticture sketch
removed accidently commited svg
Changed the schema sketch to show it should be possible to add a validator strategy to an enity as well. Since the entity is the only thing really knowing about its setup.
Implemented: added tests for the no operation implementations
Updated sketch png to be shown in read me file
Corrected name and classname of a test suite
Implemented abstract validator class implemementing the probably seldom changing »isValid« method
Corrected faulty covers annotations.
Introduced a validator strategy awareness interface to add a validator strategy to an existing class unobstrusivly
Updated readme with currently introduced validators and strategies
Merged validators&Strategies