Blender Git Loki

Removed code to initialise components when creating ID Ref

This causes problems when building the graph and we don't initialise the
id ref first, resulting in double-ups. However, initialising ID's first
is kindof painful when dealing with some of the usecases in graph building
that we have

More work fleshing out graph building...

Upgraded parenting stuff - still doesn't work quite right yet

Move all geometry-related depsgraph building into a separate function

Rename helper used to create component nodes to be clearer

Start of porting effort of graph building code over to the new system

Not everything is done yet, but the parts that are are taking shape
much better under this scheme

Adding some missing includes

WIP work to flesh out how the copying algorithm should work

Added missing typedefine for pose eval

Add copy-context argument to all copy callbacks

Filtering context init/free

Moving node/relation copy operations over to filtering API

Skeleton for Filtering + Querying API

Sketch of what the internal parts of the Filtering API look like

Fix: Missing semicolon

Remove obsolete API

Freeing method for component

Using cleaner hash iterator syntax

Typeinfo defines for outer nodes

First attempt at copy operation for ID Nodes

TODO: Relationships are still not hooked back up yet