HLT update with new menu but before L1 update - 72X

HLT update with new menu but before L1 update - 72X

This PR adds a new frozen menu for run-1 relval workflows and IB tests.
It also uses new-style naming conventions for symbolic GTs, keeping
the old one for backward compatibility.

The 73X version of this PR is #5531.
Hi Martin,
isn't it simpler to drop the hltGetConditions module with something like

self.options['modules'].append( "hltGetConditions" )

around line 995 ?