start to analyze messages passed by interconnection between subjects
moved Iterfaces.messages in other project
renamed .interfaces package in .interfaces.gauges
fix typo in package name - missing r
add notify interface
add file message interface
add pictures delay
added EMF models to interfaces
renamed project system in prototypes
repackaging system as prototypes.gauges
repackaging tests as tests.gauges
added gson library
Added some Message implementation
splil replies from commands - new Reply object
added has message method
added protype class reply
Refactoried Messages interface - generalized as ValueAsSomething and TypeAsSomenthing
Still refactoring with new hierarchy
update EMF according with last changes
Added some new tests for new classes