Use available B2OC lines and fastest reconstruction in the HLT2 + selection throughput test.

Include the B2OC lines in the hlt2_pp_thor performance test, replacing the existing dummy lines. 58 of the 135 lines are currently disabled because they break the test. A few issues must be solved to get them back:

• Implement a thread-safe version of the ParticleContainersMerger defined in algorithms.py. MR at Phys!994 (merged).

Open points from below are followed up in #333

• Convert the V0 markers in standard_particles.py to ThOr. It seems the only issue here is the buggy BPVLTIME ThOr functor.

• Convert the TMVA filters to ThOr. Is the ThOr implementation equivalent? (see example here)

• Some lines depend on particle ID functors such as ABSID (see example here). This is being implemented on Rec!2575 (merged).

Also, the fastest reconstruction sequence is enabled in the test.

FYI @sstahl @rmatev