Storing extra data in dyn Crypto implementations

[kevaundray]

#2772 added a dyn Crypto trait -- Alex Vlasov brought up the idea of storing precomputed information in the structure that implements the Crypto trait for re-use across precompiles.

The most relevant one being kzg setup information/precomputations, another could be buffer reuse

[rakita]

Would not override the crypto module as it is a singleton. If extra storage/data/cache is needed, a different approach should be taken, as adding a new boxed precompile with this function for example.