Christelle B. 24/10/2023: ELEC: avoid duplication of microphysics routines

- new version of ELEC can be used with:
   - (ICE3, LRED=T)

   - (LIMA, LPTSPLIT=T)

- add charge exchange during CIBU and RDSF

- old version of ELEC still usable

 - new version of ELEC (ELE4) can be used with LIMA2
 - electricity-microphysics retroaction added in LIMA
 - limitation of microphysical options to be used with ELEC