Support chat colour/formatting support (CTCP)

[matty-r]

\u0002 - bold \u001F - underline \u0016 - italic \u000F - cease further formatting. Example: \u0002this is bold\u000F, bold formatting stopped this is bold, bold formatting stopped

\u0003 - start colour followed by x or x,y x and y being colour codes. left pad with 0:

Number	Color	Number	Color
0	White	8	Yellow
1	Black	9	Green
2	Dark blue	10	Teal
3	Dark green	11	Cyan
4	Red	12	Blue
5	Brown	13	Magenta
6	Purple	14	Dark gray
7	Olive	15	Light gray

Example: \u000302hello there\u000F This displays hello there in dark blue

[matty-r]

Handle ACTION messages the same way?

[matty-r]

Colour formatting support has been added to during milestone v0.4.0