[Feature Request] Starboard and pins

[mrjvs]

Is your feature request related to a problem? Please describe.
Starboard and pin reaction events.

Describe the solution you'd like

> starboard (using emoji as the starboard id)
;starboard create <emoji> <count> <channel>
;starboard list
;starboard edit <emoji> emoji <newemoji>
;starboard edit <emoji> count <newcount>
;starboard edit <emoji> channel <newchannel>
;starboard delete <emoji>
;starboard enable <emoji>
;starboard disable <emoji>

> pin reactions
;pins enable
;pins disable
;pins edit emoji <newemoji>
;pins edit count <newcount>

Additional context
Discussed with developers