Blender Git Commit Log

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
```