This updates Spack's top-level metadata files to reflect the new
Apache-2.0 and MIT licenses.

- `spack license list-files`: list all files that should have license headers
- `spack license list-lgpl`:  list files still under LGPL-2.1
- `spack license verify`:     check that license headers are correct

- Added `spack license verify` to style tests

- 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

- we did not get consent for this package

- This is bundled into one commit to make it easy to revert if we do get
  consent from peetsv's company to relicense these contributions.

- Revert "dialign-tx adding patch for gcc@5.4.0 (#6413)"
  - This reverts commit 09eeb991.

- Remove the following LGPL-2.1 packages because we have not gotten
  consent to relicense them:
  - fast-gbs
  - igv
  - metasv
  - perl-xml-libxml
  - py-cnvkit
  - py-crossmap
  - py-pybedtools
  - py-pyfaidx
  - py-pyvcf
  - py-vmd-python
  - r-cghflasso
  - r-dismo
  - r-proc
  - r-spatial
  - r-utf8

* omega-h: fix dependencies

1. Remove Gmodel altogether. Omega_h doesn't
   actually call Gmodel for anything, it was
   more or less just doing additional unit
   testing for Gmodel

2. Make Trilinos off by default. Most codes do
   not need the ParameterList interface, and
   Kokkos through Trilinos is not well explored
   in Spack

3. Use modern CMake style to choose the zlib
   dependency

* omega-h: update to versions 9.19.0, 9.19.1

* omega-h: add build conflict for gcc-8

* omega-h: fix CMake CXX flag options

* omega-h: turn warnings off by default

compilers.yaml can track a module that is needed for a compiler, but
Spack does not fill this in automatically. This adds a note to the
documentation informing the user how to do this.

getopts.pl is not listed as a Spack dependency of sspace-standard,
so without this change, this package was only working on systems
where getopts.pl was already installed.

* cabana: initial commit

* Cabana: added v0.1.0-rc0

If we do not specify libdir explicitly, Meson chooses something like
lib/x86_64-linux-gnu, which causes problems when trying to find libraries
and pkg-config files.

Before this, the same files were copied 3 times

* Added conflict in Trilinos for STK when building as shared on Darwin.
* Created shared variant for Nalu and Nalu-Wind to automatically build
  Trilinos as static library on Darwin. 
* Moved ECP tags from Nalu to Nalu-Wind (the latter is the official
  ECP application).

New release of Swift/T along with turbine, adlbx, and exmcutils
dependencies. Update URLs for archive downloads.

* Remove py-setuptools dependency from py-spyder (fixes #9205)
* Add constraint on transitive qt dependency to build with webkit
  extension (required for this package)
* Update pycodestyle dependency constraints
* reordered dependencies (py-zmq, py-chardet) to confirm to the
  ordering in setup.py

Spack packages installed using spack buildcache were not running
post-install hooks, which create module files and manage licenses
(if necessary).

This was already occurring for Spack packages installed with
spack install --use-cache

- cube: Add 4.4.2, add conflicts for ~gui, build 4.4 from cubegui tar
- cubelib: Add 4.4.2
- cubew: Add 4.4.1
- opari2: Add 2.0.4
- scorep: Add 4.1

https://github.com/spack/spack/issues/9514

pkgconfig is the virtual provider, pkg-config is a specific
implementation.

- Add missing pkgconfig dependency
- Explicitly disable egl