Implement some technical HLT1 lines

Ordered from simplest to most complex:

1. NoBias
   • Require bunch-bunch crossing with an ODIN filter, then prescale
2. VELO closing
   • Require N VELO tracks from the standard HLT1 VELO reconstruction (say N = 5), then prescale
3. Luminosity
   • Require lumi bit is set with an ODIN filter, then run at least one of the lumi algorithms (which counts things, e.g. number of VELO tracks)