Prefer CaloIndex enum over plain (unsigned) int, move some Calo Interfaces to Rec

Gerhard Ravenrequested to merge
prefer-enum-over-string into master

Prefer enum over plain (unsigned) int for increased type safety Move several Calo (Future) Interfaces into Rec, into the sole package using them.

must be applied in conjunction with Rec!1701 (merged), Phys!604 (merged), and Panoramix!53 (merged).

Edited by Marco Cattaneo

Merge request reports