[REFACTOR] merged ResourceDisplayComp into BaseResourceSelectionComp

Change-Id: I6caf502d98b1cb931646611f13fdd16af67d4abd
Reviewed-on: http://saros-build.imp.fu-berlin.de/gerrit/1164
Tested-by: Jenkins CI
Reviewed-by: Stefan Rossbach <srossbach@arcor.de>