Update Machines to batched versions and start removing Lt
Created by: gcarleo
This PR updates all machines to take advantage of the batched versions.
In this PR I have also removed most of the look-up tables, since they do not have any significant effect in speeding up the simulations, once batching is activated.
A mechanism for internal caching in Machines and also allowing for the use of LogValDiff
in local expectation values will be the subject of future PRs, but it is not a top priority at the moment.