Write a chain selection system

[arrudagates]

Multiple chains may implement the INV4 + IPF pallets, some may also implement INV4 + RMRK and InvArch chains implement INV4 + IPF + RMRK, we need to add those chains as a hardcoded list of names, their subxt metadata files, whether or not they should use IPF or RMRK for files (or a mix of both) and in the future when we implement smoldot, we'll also need their chainspec. This is fine hardcoded, as once a chain is deployed those are not supposed to change.
For the url protocol to match, it should look like inv4://<chain>/<id>, for Tinkernet in IPS ID 42 it would look like this: inv4://tinkernet/42.