Merge branch 'dev-scifi-master-digitPEs' into 'dev-scifi-master'

Dev scifi master digit PEs

Assessing LHCBSCIFI-11 together with LHCBSCIFI-51 .
Changed the way ADC's are interpreted, stored (float) PE in addition. Changed event model (Event/FTEvent) as well.

For tests, see https://indico.cern.ch/event/564701/attachments/1327395/2024172/jacco_scifisoftcommitDigitPE_230916.pdf

See merge request !26