Draft: ISF_PunchThroughTools - Adjust PCA to reinclude all PCA mode
Current ISF_PunchThroughTools (MR !61679 (merged)) allows the PCA parametrization to be split based on different eta regions (or PIDs).
However, all-PCA option is not included.
This MR introduces JO option to pick all-eta PCA for the punch through simulation.
(target branch 23.0)
@tqiu