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

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 rather than Conan one.
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 separably reactivable, in case they were missing.
OpenImageIO: To the contrary, tbb option is activated.