Introduce SCT_InducedChargedModel class
- Introduce SCT_InducedChargedModel class taken from release 21.0 (MR !36626 (merged)) with some cleanups
- The changes of SCT_SurfaceChargesGenerator class in (MR !36626 (merged)) are not included in this MR because changes of SCT_InducedChargedModel class is necessary to cope with AthenaMT.
- Pontential and electric fields will have to be recorded by a new condition algorithm.
Tag @mtogawa
Edited by Susumu Oda