New custom user statuses should appear in !user

[syntaxaire]

Related to #620, we must moderate the new custom statuses, but they don't appear when we issue a !user command. These should be included to form part of the channel record for moderation purposes.

[kosayoda]

appy aperture is working on this

[jerbob]

appy aperture is working on this

can confirm

[SebastiaanZ]

There's currently a PR that changes quite a bit in regards to the !user command, so we may want to determine a merge order to avoid conflicts. See #637.

[syntaxaire]

See also python-discord/organisation#157 - consensus was "we moderate these when we see them"

[jerbob]

@SebastiaanZ I just merged the two branches locally, and there don't seem to be any merge conflicts.

[jerbob]

That being said, it might be wise to merge #648 first, since the PR's pretty much done and the diff's fairly small.