Implement IEvaluator for Koios
It seems like all providers except Koios implement IEvaluator. I was surprised by this when the TS type checker told me I could not use the koios provider for the evaluator param of the new MeshTxBuilder() constructor.
However, Koios also offers a limited Ogmios endpoint, with a subset of the ogmios api, which include Tx submission and Tx evaluation: https://api.koios.rest/#tag--Ogmios
And it seems Mesh already has IEvaluator implemented for the Ogmios provider. So I think it could be a low hanging fruit to add that implementation to Koios as well, by leveraging some of the code already written for the ogmios provider.
If I have time, I can give it a try. But at least now it’s recorded in an issue.
Related #577