Add role colour and hoisting to edit_role.
Add role colour and hoisting to edit_role.

imayhaveborkedit/discord.py,variablehair/Eggplantato,lgkern/PriestPy,megamit/discord.py,Theoretical/UselessBot,khazhyk/discord.py,rapptz/discord.py,Harmon758/discord.py,Harmon758/discord.py,jhgg/discord.py,Rapptz/discord.py,mgardne8/discord.py,eartsar/discord.py