Add TrMINIPCHI2 and TrMINIPCHI2CUT functors from Phys!455
These functors were originally put in Phys!455 (closed) because they required a tool in Phys
.
After some discussion on that MR the calculation was changed to use a different tool, which lives in Rec
.
This MR moves the functors to Rec
.
Closes Phys!455 (closed).
Edited by Marco Cattaneo