[0.0.7] Infinitely many stacks in shape viewer

[knotty hatch]

In the shape viewer you are able to put in 15 many layers, also empty layers.
The render time get progressively longer with each additional layer
Since the characters seem to be limited instead of the layers after inputting 15 layers one can still add 3 additional characters.

[final bane]

these is an intentionally implemented mechanic

[fading ravine]

We wanted to allow for some creativity and fun ^^