BlendLuxCore

LuxCore

Reduction of Boost footprint, replaced with standard equivalents available in C++20.
For the need of previous point: replacement of apple-clang by clang 20 on MacOS platforms
New target 'wheel-test' that builds a testing wheel in local build (make wheel-test)
Requirement checking in make deps
luxrays: rename GetConfigDir as GetCacheDir and use XDG_CACHE_HOME according to specifications (@illwieckz)
Subdivision: add an "adaptive" setting to select between adaptive refinement and uniform refinement

Dependencies updated to latest versions
Removed a workaround introduced in previous version (we used to build a fake wheel to get containerization)
OpenMP - MacOS: Use of homebrew OpenMP (up-to-date, compatible with clang 20) rather than Conan llvm-openmp (version 17...). As a consequence, for MacOS Intel, a version >= 13.0 is required.
Opensubdiv: tbb activation. As a consequence, for MacOS Arm, a version >= 14.2 is required.
OpenImageIO: deactivation of several image formats that seem unrelated to or unsupported by LuxCore: freetype, hdf5, ffmpeg, libheif, ptex, opencv, webp. This removal spares both compilation time and build result size. Those formats are reactivable, in case they were missing.
OpenImageIO: To the contrary, activation of tbb option.