Update of AlignConstraints; fixed bug in AlDofMask
- fix bug in AlDoFMask affecting the printout of the lagrange constraints
- improve the naming of constraints: the shearings are now called SzTx rather than Szx. SzTx means a Tx linear in z.
- added constraints SxRz (rotation as function of x), SxTz (Tz as function of x) and Sx2Tz (Tz as function of x^2)
- fix bug in track ordering for selecting tracks for PV division
- rationalize use of PV filter for FT alignments
- make sure all relevant velo tracks are present when using PVs as input to tracker alignment
- update D0 particle selection (tighten IPCHI2 cut for input tracks; add DLS cut for mother)
- add AlignVertexTrackExtracter which can be used to add only tracks in selected PVs to alignment
- add lagrange constraint relative to survey
- add information on residuals for joint constrains per alignable
this needs Rec!3882