7.1 support

[Minmoose]

Current known issues are,

• The when choosing hair or face paint the items presented are incorrect
• The shader properties section on the Advanced Appearance Window do not show, I believe this is because the offset values for the shader values have changed
• Animation speed control and freeze character animation buttons are broken

[Cellane]

I'm sorry to butt in on a work-in-progress PR, but I tested it the other day (I believe latest commit as of time of writing this comment) and found another issue, in which the modal window for selecting animation/emote doesn't show nearly as many emotes as pre-7.1, emotes such as ranger poses, ball dance, push-ups and more are missing entirely, and a lot of other emotes only have the Intro animation listed, not their Loop animation – such as Bee's Knees.

(I think I also couldn't easily find unnamed poses such as chairsit/groundsit/bed but I think I didn't search thoroughly enough for them.)

[Minmoose]

@Cellane Don't worry you're not "butting" in, I appreciate the report as I didn't catch that, I'll investigate, Thanks!