Blender Git Loki

Add newly creates faces to imported faces and dissolve edges.

The code so far imports triangles, but also fills holes.
Committing since it doesn't crash.

test file:

```
o plane_with_hole
v 2 2 0
v 2 -2 0
v -2 -2 0
v -2 2 0

v 1 1 0
v 1 -1 0
v -1 -1 0
v -1 1 0

f 4 1 2 3 4 8 5 6 7 8 4
```