Blender Git Loki

Added object vertex and edge constructors for the BVHTree type.

Fix: Relationships to time source nodes were getting removed by reachability pruning

Moved DepsRelations (i.e. inlinks/outlinks lists) back to DepsNode as originally intended

Otherwise, it really doesn't make much sense that we're deriving all these different
node types from DepsNode, when these can't represent relationships between different
nodes. Also, this will be useful for some upcoming new node types for keeping track
of other kinds of dependencies other than what's executable.

Made debugging identifiers for nodes less "scary" looking

Fixed logic for verify_entry_exit_ops()

This was assuming that there were relationships between nodes when checking for
inlinks and outlinks. However, since relationships are computed in a later pass,
there are always none, and it ends up nearly always adding unncessary entry/exit
noops (unless there's just a single op in the component).

Fix: Some of the object transform relations weren't quite right

* For now, we need to connect the parent to the component init, or else
the parent matrix doesn't accumulate correctly for object parenting

* Final transform op wasn't getting hooked in at all

Object transform evaluation is now done in new-depsgraph-driven callbacks instead of ubereval

* The ubereval is still lurking around for handling proxy cruft

* I've implemented a stripped-down version of the parenting code for
use here (notably, without the slow parenting, and originmat support).
The old/full version did a bit too much for us to be able to keep the
old code running while we worked on the new version too, without making
the code too messy.

Later on, when we work out the geometry handling a bit more, we may need
to replace the parent-matrix finding code it uses too (i.e. to make it
grab data from context instead - especially in cases where it hunts for
this info itself currently).

"Done" callback for object transforms was missing

Preparing object evaluation code for getting split off from ubereval into smaller chunks

Object transform nodes are now hooked up correctly

The constraint stack could still benefit from being split up into multiple ops
(e.g. "pre", ... "constraint-n"..., "post"), but this order should be ok for now.

Code Cleanup: Remove incorrect/old code

Depsgraph Debugging: Utility operators for easier debugging

Added operators to access the rebuild and export tools to make it easier to
quickly debug any file's depsgraph without having to pull up a console first.

Full WIP work to get better control regarding 'camera' aspect of objects.

First expose a method in Object RNA to get camera projection matrix (done).

Then, expose a method to get camera position (and scale for ortho) so that
it fits a given set of coordinates (still unfinished).

this among other things implied rewriting `BKE_camera_view_frame_fit_to_scene()`
underlying logic so that it uses `CameraParams` system, instead of `BKE_camera_view_frame()` one.

windows crash fix: material name had incorrect length

Joined the two bvh tree classes in a single type for simplicity.

New mathutils submodule for BVH tree support in python.

Facemap bones now draw properly. It's not possible yet to select the
bones so use with caution.

fix for: splinters (axises should be local X, Y, Z again), added object name into material name, and allow conversion-to-keyframed-objects of multiple objects at once

Fix more crashes when removing facemaps. Indices of leftover facemaps
above the deleted one could become invalid

More silly mistakes in widget move code.