Blender Git Loki

Cleanup: naming for BKE_fluid particle functions

Create/Destroy are more commonly paired terms in BLI/BKE API's.

Cleanup: use uint

Cleanup: remove redundant string initialization

Fixed sized strings are always initialized & this is not done
elsewhere before calling BLI_path_join.

Remove since it's not needed and makes it read as if the function
might not initialize the output argument.

Cleanup: use snake case variable & function names

Cleanup: conform header guards to Blender's style

Cleanup: split smoke drawing out into it's own file

gpu_draw.c had generic sounding utility functions which were specific
to smoke drawing.

Split into it's own file so the functionality is clearly separated.

Cleanup: redundant struct declarations

Cleanup: sort struct declarations

Cleanup: sort file lists

Cleanup: use BKE_fluid prefix for fluid API

PyAPI: disable threading hack when fluid is disabled

Cleanup: style, always use braces

Fix deprecated DNA define checks

Also remove dead code which checked for SPACE_TIME.

Cleanup: remove contributors, license begin/end & doxy file argument

This had already been removed for all source files,
recent patches re-introduced them.

Cleanup: compiler warnings

Cleanup: clang-format

Cleanup: remove redundant headers

Cleanup: replace 'if 0' with 'DEBUG_PRINT' define

Allows enabling debug prints in this file easily,
differentiates it from code which has been disabled for other reasons.

Also remove unused DEBUG_TIME.

Fix linking errors WITH_MOD_FLUID=OFF

Merge branch 'greasepencil-object' into greasepencil-refactor