wgrib2: add cmake builder (#48447)

* wgrib2: add cmake builder

* wgrib2 add maintainer

* [@spackbot] updating style on behalf of AlexanderRichert-NOAA

* style fixes; add tar.gz for old vers

* license update

* wgrib2: don't restrict openjpeg variant by version

* Update var/spack/repos/builtin/packages/wgrib2/package.py

Co-authored-by: Massimiliano Culpo <massimiliano.culpo@gmail.com>

* [@spackbot] updating style on behalf of AlexanderRichert-NOAA

* Update package.py

* Update package.py

* Update var/spack/repos/builtin/packages/wgrib2/package.py

Co-authored-by: Wouter Deconinck <wdconinc@gmail.com>

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Co-authored-by: Massimiliano Culpo <massimiliano.culpo@gmail.com>
Co-authored-by: Wouter Deconinck <wdconinc@gmail.com>