Initial version of the 'Logging' annotation.
add nicer error message, if the 'type' is mistyped.
add error/warning methods
@FiresEvent(typeof(ChangeListener))
Merge sources from branch 'master' of gzsombor/logging-annotation
Merge branch 'FiresEvent'
Merge branch 'logging-annotation' of https://github.com/rzymek/xtend-annotations