Update: experimental TS typings are available

[rubensworks]

This issue is just to signal to everyone here that a PR to @rdfjs/types has been opened with the initial version of the query spec interfaces: rdfjs/types#30
There is also a prerelease of @rdfjs/types (1.1.0-next.0) available for testing.

[rubensworks]

For reference, 1.1.0 has been released in the meantime.