Redefine has_size to be compatible with intel 11.1.  This *mostly*
fixes issue #2834 except that intel 11.1 doesn't pass the CEA
regression tests using valarray.
[antioch]: #2839, fixing ambigious overload by explicitly casting as Scalar type. Fixes a std::pow error on intel 11.1 on lonestar.
[antioch]: explicitly casting ambigious coefficient as CoeffType for #2839
[antioch]: explicitly casting ambigious variable as Scalar for #2839
[antioch]: explicitly casting ambigious variable as CoeffType for #2839
[antioch]: explicitly casting ambigious variable as Scalar for #2839. All tests are now passing on lonestar using intel 11.1
Be prepared to use Koenig lookup if necessary.
Add config/Eigen/metaphysicl includes

These were missing within the unit test relative to others.
Uncovered while working on Eigen support sans ANTIOCH_HAVE_EIGEN.
[antioch]: Eigen interop without --enable-eigen (#2841)
new branch, lots of work to do to obtain the chemical process/kinetics model hierarchy
updates on files (#2848)
Chemical processes added, not yet finished (#2848)
(#2848) updates
Unit test for rates added and running
Checkpointing - roystgnr
start the sensitivity outputs, raised kinetics_unit tests threshold
(#2848)
updates

Description of prod/loss/net rates done (#2848)
Fix whitespace in LICENSE
[Antioch]: Have added CEAThermoMixture and CEAEvaluator to better
conform to the "Fixed for program" object + "Lives and dies with thread"
object. I've left CEAThermodynamics in there so we can compare/constrast
these two things. Alot of code duplication, but the expectation one of the
two sets will die during the code review and we will pull out the duplicates
then.
Aesthetics: rate object have two layers of parameters:
  - input parameter and scalers
  - reduced parameters for fastest calculations
(#2848)