setname and Standard Replies

[andymandias]

Simple, straightforward implementations for Standard Replies and setname. Bundled because setname will produce a Standard Reply when it fails, providing an easy way to trigger a FAIL Standard Reply (on InspIRCd servers).

Standard Replies introduces three new colors to themes (for FAIL, WARN, and NOTE), which default to the server message color if not specified. Standard replies all all shown in the server buffer (triggering the unread indication).

[casperstorm]

Clean. Haven't tested it but code looks good 👍🏻

[4e554c4c]

oh awesome! I was thinking about taking a shot at this, so im glad it's getting done. This would also resolve #656.

One quick comment:

Standard Replies introduces three new colors to themes (for FAIL, WARN, and NOTE), which default to the server message color if not specified.

in my opinion FAIL should default to an error color, and WARN to secondary. Both of these are important to not miss, and possibly fatal to the connection. Only NOTE is really an ordinary server message.

[andymandias]

Error color makes sense to me for FAIL. I'm not sure if text-secondary will attract attention, at least with the default Ferra theme, but that might just be me. Any preference for the fallback WARN coloring, @casperstorm?

[tarkah]

Clean! LGTM