Blender Git Commit Log

Preparation step for nuking OMP from multires code.

Remove the critical OMP sections used to protect mem allocation.

First one can be done in a separate loop before main, parallelized one.

Second one only affect 'private' data, so we only need to ensure
guardedalloc thread safety is enabled.

This is committed as separated step to ease troubleshooting in case
bisecting becomes necesary.