Move PrFilter and DumpContainer into headers and add some functors

depends on LHCb!2309 (merged)

1. moved prfilter and dumpcontainer to headers, so that one can use them in downstream projects (and overload with other data types)
2. some functors like combdlls, chi2ndof, charge, phi... (some also defined for LHCb::Particle, to be able to compare things)
3. a converter from recvertex to recvertex_v2