Add F8 BLAS data types conversion (#106843)
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### <samp>🤖 Generated by Copilot at 54e843d</samp>
> _`Float8` types added_
> _to switch on `ScalarType` -_
> _CUDA version checked._
Pull Request resolved: https://github.com/pytorch/pytorch/pull/106843
Approved by: https://github.com/Skylion007
