Blender Git Loki

Particles: show which nodes are only mockups in the Add menu

More nodes will be implemented step by step. I don't remove/disable these nodes,
so that it is still possible to add them.

Cleanup: avoid using namespace name in many cases

Particles: initial Quick Particles operator

This operator automates the following steps:
1. Create a point cloud object.
2. Create a simulation data block.
3. Add a small particle simulation to the node tree.
4. Add a Simulation modifier to the point cloud object.
5. Reference the particle simulation from the modifier.

You have to go back to frame 1 to start the simulation.
The simulation is not yet cached and cannot be rendered.

The bounding box of the point cloud object is enabled for now,
because otherwise it is hard to select the object.

Pointcloud: workaround for a viewport drawing issue

Allocator: fix build error with -Werror=format-security

Particles: improve emitter when object is animated

Merge branch 'blender-v2.90-release'

Fix T79260: Crash displaying the same mesh in two windows

Merge branch 'blender-v2.90-release'

Fix T79239: UV path select crash

Merge branch 'blender-v2.90-release'

Fix T79254: FCurve editor crash when zooming out to limit

Simulation: cleanup dna data

Merge branch 'blender-v2.90-release'

Fix T72622: Transform object origin ignores shape keys

D8367 by @paul2t with edits.

Merge branch 'blender-v2.90-release'

Cleanup: Rename 'isect_ray_seg_v3' to 'isect_ray_line_v3'

The name was misleading as it returns true whenever it intersects the
line represented by the points.

GPencil: Add more randomness to random stroke color

The old method produce a small range of similar colors.

Merge branch 'blender-v2.90-release'

Fix OptiX being shown as available on first generation Maxwell GPUs

The OptiX kernels are compiled for target "compute_sm_52", which is only available on second
generation Maxwell GPUs, so disable support for older ones.