Bug#1021646: blender: enable HIP in Cycles (2023 Update)

[Cordell Bloor <cgmb@slerp.xyz>]

Hello Maintainer,

Would you be open to a patch or merge request that enabled HIP support 
to the blender package?

HIP has been available in Debian for over a year now and the packaging 
is a bit more mature. It is now possible to build for HIP just by adding 
hipcc to the build dependencies and setting 
-DWITH_CYCLES_HIP_BINARIES=ON 
-DCYCLES_HIP_BINARIES_ARCH="gfx900;gfx902;gfx906;gfx1010;gfx1011;gfx1012;gfx1030;gfx1031;gfx1032;gfx1034".

Christian Kastner and I have also been setting up a CI system for 
packages with GPU acceleration [1]. If there are autopkgtests for 
rendering on AMD GPUs, we would be happy to run them. We are working 
towards having every modern discrete AMD GPU architecture covered on the CI.

Sincerely,
Cory Bloor

[1]: https://lists.debian.org/debian-ai/2023/08/msg00003.html