Several improvements
Added hover support for declaration from included specifications
Added support for included specs for Undefined Identifier Warnings
Rewrote ChildDocumentWatcher to use Paths instead of Strings

Change-Id: I1c62e0595723b2047f67b9c0458951a8e37f5bb7
Signed-off-by: mstegmaier <michael-1.stegmaier@uni-ulm.de>