Jan 17, 2023: version 7.0.0
* SuiteSparse_config: now v7.0.0
* SuiteSparse_config struct: removed from external visibility to simplify
the Windows build, so that no global data is externally visible.
This requires a major version number increase from v6.x to v7.x for the
SuiteSparse meta-package (which has the same version number as
SuiteSparse_config). Added get/set methods to SuiteSparse_config to
access the contents of the struct.
* NFORTRAN: option added to ignore any Fortran methods, even if a Fortran
compiler is available.
* port of new cmake-based build system to Windows
* UMFPACK 6.1.0: copy/serialize/deserialize methods: added new methods to
copy, serialize, and deserialize the Numeric and Symbolic objects. By
Will Kimmerer, revised by T. Davis.
* NFORTRAN: option added to disable Fortran entirely
* GraphBLAS v7.4.2: global free pool disabled, and GrB_mxm heuristics
revised. Build system revised. NTHREADS and CHUNK in descriptor deprecated.