ADMIN command

[slingamn]

https://modern.ircdocs.horse/#admin-message

[bogdomania]

This could easily be embedded at the beginning of #461
All in one command, instead of multiple commands,
required to gather related info about the server(s).
Is far more convenient to just /staff, instead of /admin, /info & /Who 0 , etc.

[RunBarryRun]

Maybe an admin block in the conf file ?
server:admin-info
admin-name:
admin-loc1:
admin-loc2:
admin:email:

/admin command issued:
RPL_ADMINME server.config.admin-name
RPL_ADMINLOC1 server.config-adminloc1
etc