Running Grats on Deno

Here's a repo that runs [repo](https://github.com/mandx/denograts) and documents some warts and workarounds.

What I have found so far:
* Scalars provided by Grats (`import { Float, Int, ID } from "grats"`) are importable just fine, but seems like the docblocks aren't reachable.
* Kinda makes sense: these imports are importmaps managed by Deno; I'm guessing Grat's Typescript compiler can't locate the actual file where the scalars are defined, the file containing the scalars' dockblocks.
* A not-so-terrible workaround is to "vendor" the scalar definitions, so they are fully accessible by Grat's (see `schema.ts` in this repo).
* Module remapping must be done carefully to ensure a single `graphql` version is pulled, otherwise `graphql` itself will complain.

Start by reproducing the examples in the linked denograts repository, then inspect schema.ts and the reported Deno import and module-remapping behavior. Compare scalar docblock discovery and the resolved graphql versions; done should mean the Deno setup has a defined, reproducible outcome for both reported issues.

Written by the indexing model from the issue text.