Add monitoring features for FunTuple and include Tupling of vectors and 3x3 matrices

This merge request addresses #16 (closed), namely providing monitoring of the user jobs by including:

• Number of processed events;
• Number of non-empty events;
• Number of events with candidate multiplicity > 1.

It additionally includes tupling of vector quantities and 3x3 matrices.

Requirements: DaVinci!585 (merged)

Work towards https://gitlab.cern.ch/lhcb-dpa/project/-/issues/6.