Blender Git Loki

Reshuffling order of params in components to include eval-context ptr

Assorted cleanups

Added missing Root and Timesource nodes

Removing some more old crap

Remove obsolete node management code and type defines

Pass down Scene pointer instead of scene node

Scene pointer is used more directly more often, while the node
we can easily fetch if/when we need it

Ported over graph building code for a few types

* Curve
* Metaball
* Camera

Support for Shapekeys

More blocking out of stuff...

Initial conversion of code for building parenting relationships

Type defines for the base-type nodes (IdRef, Component, AtomicOperation)

Start of revamped design (#2) - New node type enum defines

This commit marks the start of the second attempt at building a new
depsgraph system for Blender. It still uses the base depsgraph types
from the first attempt, but this time, the node types we've chosen to
sit on top of these (for representing the necessary semantic concepts)
have been chosen to be more in line with the requirements we face in
terms of how exactly we're going to be able to use this for evaluating
stuff.

Renaming relationships types to be more consistent with the rest of the API

Fleshing out code to add drivers to depsgraph

This is still quite crude, and starts to show the flavour of how the graph
will need to be constructed. After fleshing out a few more bits like this
we can review the design with greater clarity.

Start of code for adding AnimData (animation + drivers) to depsgraph

Graph Building - Stub for object parents

Expand convenience method used by driver graph building into a useful querying API call

DEG_get_node_from_rna_path()

Graph Building - Stub for materials

Simplify driver building code using DEG_get_node_from_rna_path()

Copying over skeleton logic for object parenting