* Updating nalu-wind, nalu, openfast, and tioga packages. Includes
improved handling of +shared variant.
* Add fftw and catalyst support to nalu-wind.
* Restrict ParaView to use matplotlib versions before 3 (which
require Python 3)
- remove the old LGPL license headers from all files in Spack
- add SPDX headers to all files
- core and most packages are (Apache-2.0 OR MIT)
- a very small number of remaining packages are LGPL-2.1-only
