Implement math for 2D measurements
To deal with the projection and filtering of 2D measurements in Rec, the corresponding math (Filter, Similarity transforms) for 2x5 projection matrices is implemented in the LHCb math kernel.
To match interface calls in Rec, this MR should be considered in line with Rec!2485 (merged) and Alignment!205 (merged)
Edited by Jacco Andreas De Vries