AST-1020 implement getNeeds() in simple steps (no substeps, no BDA, no MSUpdate)

Chiara Salvonirequested to merge
ast-1020-implement-getNeeds-1 into master

Implements getNeeds() in: AntennaFlagger, AOFlaggerStep, ApplyBeam, Averager, ColumnReader, Counter, Demixer, Filter, Interpolate, MedFlagger, MSWriter, NullStokes

Edited by Chiara Salvoni

Merge request reports