Declare data format conditions in Rich{1,2}

Declares a number of RICH conditions needed for the decoding support. Removes a couple of 'test' conditions that are somewhat redundant now 'real' conditions are present.

Requires changes to the condition DB in lhcb-conddb/lhcb-conditions-database!12 (merged)

Note, this MR has now been rebased against !149 (merged) so that MR should be merged before this one.

I also now add an additional feature to make it easier to work with custom DB locations, by allowing the location(and or tag) to be overridden via an environment variable.

e.g.

 > LHCB_CONDITION_DB='git:/cvmfs/lhcb.cern.ch/lib/lhcb/git-conddb/lhcb-conditions-database.git@jonrob/rich-move-PMT-numbers-cond' make test ARGS="-j 12"

or

 > LHCB_CONDITION_DB='file:/usera/jonesc/NFS/GitDB/lhcb-conditions-database' make test ARGS="-j 12"