prepared action handling, just like messages.
Merge branch 'sprint1' of https://github.com/TestingTechnologies/PlayCustomParameters into sprint1

Conflicts:
	ttworkbench.play.parameters.ipv6/src/ttworkbench/play/parameters/ipv6/editors/ValidatingEditor.java
	ttworkbench.play.parameters.ipv6/src/ttworkbench/play/parameters/ipv6/validators/AbstractValidator.java
fixed ValidationResult -> ValidationResultMessage
further implemented action feature
completed action triggers, added FIB_N as example: if not "5" hide/disable stuff