fix: Added default values to some of the event fields when adding a new event
fix: Added default values to some of the event fields when adding a new event

- basically the only required field now is the info field, everything else uses sane defaults

FloatingGhost/MISP,cristianbell/MISP,devnull-/MISP,devnull-/MISP,TheDr1ver/MISP,devnull-/MISP,crruthe/MISP,Rafiot/MISP,crruthe/MISP,Rafiot/MISP,crruthe/MISP,TheDr1ver/MISP,MISP/MISP,Rafiot/MISP,FloatingGhost/MISP,cristianbell/MISP,SteveClement/MISP,SteveClement/MISP,TheDr1ver/MISP,MISP/MISP,SteveClement/MISP,FloatingGhost/MISP,SteveClement/MISP,FloatingGhost/MISP,SteveClement/MISP,MISP/MISP,MISP/MISP,crruthe/MISP,cristianbell/MISP,FIRSTdotorg/MISP,MISP/MISP,FIRSTdotorg/MISP,FIRSTdotorg/MISP,Rafiot/MISP,devnull-/MISP,cristianbell/MISP,FIRSTdotorg/MISP,TheDr1ver/MISP