new: [installer] Generic support functions
new: [installer] Generic support functions

MISP/MISP,FIRSTdotorg/MISP,SteveClement/MISP,FloatingGhost/MISP,SteveClement/MISP,FloatingGhost/MISP,FIRSTdotorg/MISP,SteveClement/MISP,FloatingGhost/MISP,FloatingGhost/MISP,SteveClement/MISP,MISP/MISP,FIRSTdotorg/MISP,MISP/MISP,FIRSTdotorg/MISP,MISP/MISP,MISP/MISP,SteveClement/MISP