feat: Python wheels workflow and build backend #6258

Job	Run time
macos-12 appleclang13/C++17 py3.10 MacOS-12	18m 14s
VFX2021 gcc9/C++17 py3.7 exr3.1 ocio2.0	10m 9s
macos-13 appleclang14/C++17 py3.11 MacOS-13	21m 52s
VFX2021 clang10/C++17 avx2 exr3.1 ocio2.0	10m 56s
macos-14 appleclang15/C++20 py3.11 MacOS-14-ARM	10m 55s
VFX2022 gcc9/C++17 py39 exr3.1 ocio2.1	8m 42s
VFX2022 clang13/C++17 py39 avx2 exr3.1 ocio2.1	8m 44s
VFX2022 icc/C++17 py3.9 exr3.1 ocio2.1 qt5.15	13m 28s
VFX2022 icx/C++17 py3.9 exr3.1 ocio2.2 qt5.15	11m 32s
Ubuntu latest releases gcc13 C++20 py3.12 avx2 exr3.2 ocio2.3	18m 18s
VFX2024 sanitizers	38m 15s
Ubuntu bleeding edge gcc14 C++20 py3.12 OCIO/libtiff/exr-master avx2	28m 5s
VFX2023 gcc11/C++17 py3.10 exr3.1 ocio2.2	10m 55s
Ubuntu all local builds gcc12 C++17 avx2 exr3.2 ocio2.3	18m 23s
VFX2024 gcc11/C++17 py3.11 exr3.2 ocio2.3	12m 0s
Ubuntu clang14 C++20 avx2 exr3.1 ocio2.1	13m 14s
VFX2021 oldest gcc9.3/C++17 py3.7 exr-3.1	12m 0s
Ubuntu debug gcc9/C++17, sse4.2, exr3.1	16m 23s
VFX2021 hobbled gcc9.3/C++17 py3.7 exr-3.1 no-sse	11m 30s
Ubuntu static libs gcc9 C++17 exr2.4	13m 3s
VFX2023 abi check	6m 5s
Ubuntu clang-format	2m 38s
windows-2019 VS2019	53m 0s
windows-2022 VS2022	49m 48s
	6h 58m 9s

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