Add information / variable creators to kernel generators

[skyreflectedinmirrors]

We should at a minimum be able to obtain:

• the list of (re-ordered) species names
• the list of reactions (if sorted), possibly rxn strings if the user specified a cantera mechanism?
• required sizes for work arrays
• data order
• Some sort of stringified version of the Jacobian where each index is called out as (say) 'd(dn_OH/dt)/dT' for complete clarity in Jacobian ordering

In addition:

• Array creators, i.e., feed the method the required problem & work size and the appropriate ** pointers and it will initialize them for you.

Mentioned by @kahilah