Blender Git Loki

Merge branch 'blender-v2.90-release' into master

Fix T79369: BMesh.calc_volume() gave incorrect result

UV: path select support with sync-select enabled

Also improve region fill with edge-select enabled which often failed
to include both vertices from each edge in the resulting region.

Outliner: Fix crash opening scenes view

The collection enable box should only show in scenes view.

Custom Menus : merge

Fix UV select with sync select enabled wasn't setting active

Custom Menus : fix pie menu buttons

Cleanup: spelling

Cleanup: warnings

Cleanup: Add TODO comments

Merge branch 'master' into soc-2020-outliner

Merge branch 'blender-v2.90-release'

Fix ghash return value on 'Correct Face Attributes' with 'Keep Connect'

The result was somewhat unpredictable.
This error was recently introduced.

Cleanup: GPU: Remove GPU_draw.h and move fluid gpu function to DRW

Merge branch 'master' into property-search-ui-v2

Cleanup: Split gpu_texture_image.c into BKE and IMB modules

This is in order to disolve GPU_draw.h into more meaningful code blocks.

All the Image related function are in `image_gpu.c`.
All the MovieClip related function are in `movieclip.c`.

The IMB module now has a connection with GPU. This is not strickly
necessary and the code could be move to `image_gpu.c` if needed.

The Image garbage collection is also ported to `image_gpu.c`.

GPU_draw.h: cleanup before splitting

RNA: Image API: Fix error in NULL check in rna_Image_gl_touch

This check was always returning true.

Cleanup: Rename define

*_LEN follows names elsewhere in Blender more closely than "_N_"

Added Particle system class and Tests to extend the framework