(QVecDev) Added tables with new labeling

[MaximVirta]

New labeling added for the Q-vector tables, with backwards compatibility with the old labeling convetion.
Internal variables have been changed directly.

[vkucera]

Please use proper camelCase for good readability. Qvec, Cpos, Cneg, Call are not words nor abbreviations.

Suggested change

	DECLARE_SOA_COLUMN(QvecTPCposReVec, qvecTPCposReVec, std::vector<float>);
	DECLARE_SOA_COLUMN(QvecTPCposImVec, qvecTPCposImVec, std::vector<float>);
	DECLARE_SOA_COLUMN(QvecTPCnegReVec, qvecTPCnegReVec, std::vector<float>);
	DECLARE_SOA_COLUMN(QvecTPCnegImVec, qvecTPCnegImVec, std::vector<float>);
	DECLARE_SOA_COLUMN(QvecTPCallReVec, qvecTPCallReVec, std::vector<float>);
	DECLARE_SOA_COLUMN(QvecTPCallImVec, qvecTPCallImVec, std::vector<float>);
	DECLARE_SOA_COLUMN(QVecTpcPosReVec, qVecTpcPosReVec, std::vector<float>);
	DECLARE_SOA_COLUMN(QVecTpcPosImVec, qVecTpcPosImVec, std::vector<float>);
	DECLARE_SOA_COLUMN(QVecTpcNegReVec, qVecTpcNegReVec, std::vector<float>);
	DECLARE_SOA_COLUMN(QVecTpcNegImVec, qVecTpcNegImVec, std::vector<float>);
	DECLARE_SOA_COLUMN(QVecTpcAllReVec, qVecTpcAllReVec, std::vector<float>);
	DECLARE_SOA_COLUMN(QVecTpcAllImVec, qVecTpcAllImVec, std::vector<float>);

This applies to all other name changes too.

[MaximVirta]

For the "Qvec" -> "QVec" part, I would prefer not to change those as there are many tasks which are already dependent on these labeling and would need to be changed as well. The "TPCpos" -> "TpcPos" I can change, but why should we change only TPC to be in lower case, when other detectors are in capitals?

[MaximVirta]

Would "TPCPos" be a better option?

[vkucera]

Your PR itself is titled QVecDev, includes files qVectorsTable.cxx, qVectorsCorrection.cxx, and defines variables like qVectorBPosVec. So apparently the capitalisation of v is very common in your code and not an issue. So I would say that the occurrences of lower-case v (e.g. Qvectors.h) should be fixed to avoid inconsistencies.

[vkucera]

Concerning the capitalisation of TPC, while it might be fine at the beginning of a word, it becomes less readable when in the middle of the word and very unreadable when combined with another detector acronym, like TPCTOF. See the examples ITSReco vs numberOfDnsConnections in the naming conventions.
Other detectors are not exceptions, of course.

[vkucera]

So TPCPos is definitely better than TPCpos but TpcPos is even better.

[strogolo]

Dear @vkucera,
we prefer not to change the capitalisation of the v because for the other detectors used in the Q-vector calculation this is the convention. So it would create troubles and differences.

Please @MaximVirta keep the v not capital and be consistent with the rest of the Q-vector framework.
This PR, as discussed with @ddobrigk, is intended to fix a renaming issue and not to change the convention adopted by us.

[ddobrigk]

Thank you @MaximVirta !