move runtime to dedicated class
add Valuable interface
add equals method in Interface
update runner with valuable
remove quoted code in tracer
add RuntimeEngine aspect
add ConsistencyChecker aspect and externalise ComponentService port checking
externalise Interface checking in Binding constructor
set attachment between Valuable and update flush method
externalise Interface checking in Attachment constructor
externalise parent checking in Configuration constructor
externalize consistency checking for component / connector and element creation
add property verification