* Checkpoint for ROOT reconciliation.

* Model on root's patch e0ae0483985d90a71a6cabd10d3622dfd1c15611.

* Feature/fnal root update (#17)

* Build the version of ftgl which has the  header FTGL/ftgl.h the ROOT expects.

* ftgl patch borrowed from source rpm

* Define FTGL_ROOT_DIR and FTGL_INCLUDE_DIR when spec contains +x+opengl

* ftgl: flake8 issues.

* Lower constraints against compiler version

Gets rid of the compiler version in packages.yaml so that we don't
constrain as much. In other words any intel compiler will satisfy these
specs. Caveat: you may have to specify compilers but it should be fine.

* Add back default versions

Add back default versions for compilers under all. The remaining specs
will be unchanged

* commit 'ef45102a72df92bd678497174d400f9ccf842b50':
  tinker: Make a few style fixes

The support has been inserted combining:
1. The support for LLVM Clang already present
2. The version translation table present at https://en.wikipedia.org/wiki/Xcode

1. support version 3.1.3, which now depends on sundials@6

2. support version 3.1.2:, which broke the two patch files and
   therefore the two patch files have been replaced by more flexible
   filter_file() commands inside a patch() function.

3. rename the variant for python extension from using the package name
   "+pyuqtk" to the more standard "+python"

4. add maintainers @omsai and the upstream developer @bjdebus who
   offered to help with the spack packaging.

5. swig should only be a build-time dependency.  swig is only
   necessary until @:3.1.0

6. confirmed python dependencies are correct by inspecting imports,
   subset python dependencies type to build, run, and confirmed all
   31 build-time tests pass including the 9 python tests:

```console
$ spack env create uqtk-dev
$ spack add [email protected]
$ spack install --test root && cat $(spack location -i uqtk)/.spack/install-time-test-log.txt
==> Testing package uqtk-3.1.3-nok6fut
==> [2023-04-19-14:56:25.005361] Running build-time tests
==> [2023-04-19-14:56:25.005536] RUN-TESTS: build-time tests [check]
==> [2023-04-19-14:56:25.009543] '/home/omsai/src/spack/opt/spack/linux-pureos10-skylake/gcc-10.2.1/gmake-4.4.1-b6g4apmfvxz3bn4eabh37dehcrg65fj7/bin/make' '-j4' '-n' 'test'
==> [2023-04-19-14:56:25.014903] '/home/omsai/src/spack/opt/spack/linux-pureos10-skylake/gcc-10.2.1/gmake-4.4.1-b6g4apmfvxz3bn4eabh37dehcrg65fj7/bin/make' '-j4' 'test'
Running tests...
/home/omsai/src/spack/opt/spack/linux-pureos10-skylake/gcc-10.2.1/cmake-3.26.3-zjmsfz23j5l4ytniz26uzvxonlu5qebr/bin/ctest --force-new-ctest-process
Test project /tmp/omsai/spack-stage/spack-stage-uqtk-3.1.3-nok6fut47h42cnaau7wkoohgqy5f2qqa/spack-build-nok6fut
      Start  1: ArrayReadAndWrite
      Start  2: ArrayDelColumn
      Start  3: Array1DMiscTest
      Start  4: Array2DMiscTest
 1/31 Test  #1: ArrayReadAndWrite ................   Passed    0.01 sec
      Start  5: ArraySortTest
 2/31 Test  #2: ArrayDelColumn ...................   Passed    0.01 sec
      Start  6: MultiIndexTest
 3/31 Test  #3: Array1DMiscTest ..................   Passed    0.01 sec
      Start  7: CorrTest
 4/31 Test  #4: Array2DMiscTest ..................   Passed    0.01 sec
      Start  8: QuadLUTest
 5/31 Test  #5: ArraySortTest ....................   Passed    0.02 sec
      Start  9: MCMC2dTest
 6/31 Test  #6: MultiIndexTest ...................   Passed    0.01 sec
      Start 10: MCMCRandomTest
 7/31 Test  #8: QuadLUTest .......................   Passed    0.02 sec
      Start 11: MCMCNestedTest
 8/31 Test #10: MCMCRandomTest ...................   Passed    0.02 sec
      Start 12: Deriv1dTest
 9/31 Test #12: Deriv1dTest ......................   Passed    0.01 sec
      Start 13: SecondDeriv1dTest
10/31 Test #13: SecondDeriv1dTest ................   Passed    0.01 sec
      Start 14: GradHessianTest
11/31 Test #11: MCMCNestedTest ...................   Passed    0.03 sec
      Start 15: GradientPCETest
12/31 Test #14: GradHessianTest ..................   Passed    0.01 sec
      Start 16: PCE1dTest
13/31 Test #15: GradientPCETest ..................   Passed    0.01 sec
      Start 17: PCEImplTest
14/31 Test #16: PCE1dTest ........................   Passed    0.01 sec
      Start 18: PCELogTest
15/31 Test #18: PCELogTest .......................   Passed    0.01 sec
      Start 19: Hessian2dTest
16/31 Test #19: Hessian2dTest ....................   Passed    0.01 sec
      Start 20: BCS1dTest
17/31 Test #20: BCS1dTest ........................   Passed    0.01 sec
      Start 21: BCS2dTest
18/31 Test #21: BCS2dTest ........................   Passed    0.01 sec
      Start 22: LowRankRegrTest
19/31 Test #22: LowRankRegrTest ..................   Passed    0.01 sec
      Start 23: PyModTest
20/31 Test #17: PCEImplTest ......................   Passed    0.07 sec
      Start 24: PyArrayTest
21/31 Test #23: PyModTest ........................   Passed    0.08 sec
      Start 25: PyArrayTest2
22/31 Test #25: PyArrayTest2 .....................   Passed    0.30 sec
      Start 26: PyQuadTest
23/31 Test #24: PyArrayTest ......................   Passed    1.44 sec
      Start 27: PyBCSTest1D
24/31 Test #26: PyQuadTest .......................   Passed    1.68 sec
      Start 28: PyBCSTest2D
25/31 Test #27: PyBCSTest1D ......................   Passed    1.66 sec
      Start 29: PyBADPTest
26/31 Test  #7: CorrTest .........................   Passed    3.43 sec
      Start 30: PyRegressionTest
27/31 Test #28: PyBCSTest2D ......................   Passed    1.50 sec
      Start 31: PyGalerkinTest
28/31 Test  #9: MCMC2dTest .......................   Passed    3.90 sec
29/31 Test #29: PyBADPTest .......................   Passed    1.66 sec
30/31 Test #30: PyRegressionTest .................   Passed    1.72 sec
31/31 Test #31: PyGalerkinTest ...................   Passed    1.63 sec

100% tests passed, 0 tests failed out of 31

Total Test time (real) =   5.35 sec
==> [2023-04-19-14:56:30.382797] '/home/omsai/src/spack/opt/spack/linux-pureos10-skylake/gcc-10.2.1/gmake-4.4.1-b6g4apmfvxz3bn4eabh37dehcrg65fj7/bin/make' '-j4' '-n' 'check'
==> [2023-04-19-14:56:30.385983] Target 'check' not found in Makefile
```

…e-release-v0.21.2

Mpsd/merge upstream release v0.21.2