Layer names

[Asuna Yuuki Nagato]

The "Layer Data" window (accessible via Screen->Layers in the editor) could use some named layers. Right now they are just called 1, 2, 3, 4, 5, and 6.

What would be some good names?

[Asuna Yuuki Nagato]

The Layer Data window is created by edit_layers in zquest.cpp