AST-1213 Introduce unit test for ApplyBeam::process step
- Introduce a new basic unit test for ApplyBeam::process() step.
- Adapt ApplyBeam to use unique DPBuffer pointer interface and XTensor view
- Update the unit test to use unique DPBuffer pointer interface and XTensor view
This merge request replaces previous merge request !1021 (closed) All review feedback from !1021 (closed) incorporated and addressed in this merge request
Edited by Maik Nijhuis