content assist stuff
more content assist stuff
adding content assist for annexes
changing some of the content assist names
adding annex subclauses to content assist
adding content assist schema
Merge branch 'develop' of https://github.com/backesj/osate2-core into develop

Conflicts:
	org.osate.xtext.aadl2.ui/src/org/osate/xtext/aadl2/ui/contentassist/Aadl2ProposalProvider.java