new: [protected mode] functionalities added to the events controller
new: [protected mode] functionalities added to the events controller

- protect/unprotect events
- include pgp signature in event on load when applicable

SteveClement/MISP,SteveClement/MISP,MISP/MISP,MISP/MISP,MISP/MISP,MISP/MISP,MISP/MISP,SteveClement/MISP,SteveClement/MISP,SteveClement/MISP