Layer selection dropdown

[HDR]

Implements Layer Selection separately from Font Selection, use kicad's built in flip functionality for back layers.

[arturo182]

Thank you for the addition, not a huge fan of the dropdown's position, dialog buttons usually take the whole row and form widgets go above them. But I'll leave it up to Greg since it's his repo ;)

[HDR]

Thank you for the addition, not a huge fan of the dropdown's position, dialog buttons usually take the whole row and form widgets go above them. But I'll leave it up to Greg since it's his repo ;)

Yeah, i was having a hard time finding a good position without shifting the entire thing.

[gregdavill]

I've moved the layer selection to what I'd consider a logic place, under the alignment.

What do you think?

[gregdavill]

This all seems to work. I suppose we could add extra inner layers if they're available? Or the back layers.

But I'm okay with just having these front layers, and using the "flip" command to toggle between front/back for now.

[HDR]

This all seems to work. I suppose we could add extra inner layers if they're available? Or the back layers.

But I'm okay with just having these front layers, and using the "flip" command to toggle between front/back for now.

Adding the rest of the layers is as easy as just adding them to layer_choices in dialog.py, these are the other layers i left out.

F.Adhes Dwgs.User Cmts.User Eco1.User Eco2.User