FindBLAS: BLA_VENDOR env var takes precedence over cmake var

On linux with OpenBLAS installed.

$ BLA_VENDOR=Generic cmake .. -DBLA_VENDOR=OpenBLAS
-- The C compiler identification is GNU 13.0.1
-- The CXX compiler identification is GNU 13.0.1
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Looking for sgemm_
-- Looking for sgemm_ - found
-- Found BLAS: /usr/lib64/libblas.so

libblas.so is selected rather than libopenblas.so.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information