Current implementation had some faulty assumtions and had some work
arounds for crashes that were actually limitation of the implementation.
The main reason for this was that the implementation didn't add new
primitives in the same direction it was already adding. Some when
incorrect behavior was detected it was assumed that the part wasn't
manifold (anymore) and didn't fix that part of the mesh.
The new implementation will extract a solution and use this solution
also as the order to generate primitives in uv space.
This patch fixes several crashes and improves the overall quality
when fixing seam bleeding. It also adds additional debug tools
(print_debug) implementation in order to find issues faster in the
future.
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