V1 of bringing everything together

[stuartlynn]

This PR has the starting point of bringing the different threads together

• Makes everything async.
• Maps the CLI data command into a DataRequest
• Uses this DataRequest along with the Metadata Catalogue to get the locations of the metrics and geoms
• Call the methods to get the geometries and metrics
• Join them together and return as a DataFrame

Work still to be done that is probably for future PR's and issues.

1. Align with the new metadata model
2. Explore accessing the different metric files in parallel to speed up fetches.
3. Figure out how the survey is selected / inferred.
4. How do we align async with wasm?

[yongrenjie]

Okay, I'm going to try to put together a dataset that obeys the metadata schema asap and we can go from there.