Initial commit for VFX Platform 2024 containers

[jfpanisset]

See CHANGELOG.md for list of new versions

Some highlights:

• alembic, pybind11, qt, pyside are now Conan builds only
• clang 15 and 16
• CUDA 12.3, OptiX 8
• conan package dependencies correctly versions locked
• conan packages now export all their CMake files and can be consumed by CMake outside Conan
• some Conan package tests disabled for now

[lgritz]

NOT A PRIORITY for near term, but next time you're adjusting versions, current llvm is 17 and 18 is maybe a month or so away. Unless somebody needs 15/16 in this container, probably should think about 17/18 as the modern versions for 2024.

[jfpanisset]

Would 16/17 make sense? I'd like to get a release out ASAP.

I seem there was some discussion of the transition to 17 being a bit tricky for OSL since it relied on infrastructure that was changing quite a bit in llvm 17, has that issue been addressed?

[lgritz]

Long since fixed. OSL tests on 17 as part of its CI. At least for OSL 1.13 that will be released in the next couple days.

I would say (at your convenience): definitely add 17, I would remove 15 but keep if somebody else says they need it, I'm neutral on 16.

[lgritz]

For the sake of getting a release out soon, by all means go with what you have now.

I just meant, next time you revisit...

[jfpanisset]

Swapping out LLLVM 17.0.1 for 15, the timing makes it worth the effort

[lgritz]

The choices all seem fine to me