Blender Git Loki

Initial fix for proxy issues regarding new libquery/libremap ID handling code.

libquery now passes an extra flag info to the callback, in case that specific
ID usage is considered as indirect.

In most cases, it's just set from ID_IS_LINKED_DATABLOCK() result on datablock owner,
but in proxy object case we also consider ob->data, materials and pose usages as indirect.

Does not fixes all issues yet, but should already make behavior with proxy object saner.