Draft: begin work on streaming implementation for deno-sqlite-dialect

This MR introduces streaming support for x/sqlite. It sorta works but there's an issue with some kind of dangling promise:

./src/KyselyKv.test.ts (uncaught error)
error: (in promise) SqliteError: unable to close due to unfinalized statements or unfinished backups
      throw new SqliteError(this.#wasm);