2021-12-02 Rec v33r4

This version uses Lbcom v33r5, LHCb v53r5, Gaudi v36r2 and LCG 101 with ROOT 6.24.06.

This version is released on master branch. Built relative to Rec v33r3, with the following changes:

New features new feature

Fixes bug fix workaround

Enhancements enhancement

Code cleanups and changes to tests modernisation cleanup testing