feat: eth and sol pkh cacao validation

[dav1do]

Creates a new validation crate and provides a Verifier trait implemented on CACAOs. It currently only understands Ethereum and Solana PKH and is not used outside of tests. I added some new crates for crypto libraries to the root (we mostly had them transitively through spruceID ssi but didn't have direct access). To validate a CACAO we must first rebuild the SIWx message the user saw, which is included. The CAIP-2 (chain)/CAIP-10 (account) parsing comes from the ssi-caips crate. During testing, we included a solana address that wasn't valid and it failed, but the tests need to be updated to include this.

This uses the test CAR files generated by the ceramic-sdk and parses them to build events of different types/signing methods. Currently it only uses the valid eth/sol events and I need to update the tests for the invalid signatures and did:key methods (those are simply included to demonstrate it builds/parses). There are tests for an existing CAR file that checks the VerifierOpts logic around skew, grace period, "at time" for ethereum (that logic is shared for all CACAOs).