ReactionMechanismSimulator v0.3.0

-Kinetics vectorization and general performance improvements: factor of 5-6x improvements on domains where rate coefficients need recomputed
-Forward sensitivity analysis reimplemented and adjoint sensitivity analysis added
-Clean up in Domain.jl
-add ConstantTADomain for catalyst sites
-Sparse reformulation of Domains
-Analytic Jacobians
-require python 3.7