Extrinsics V5 Support #157
Description
In order to run a transaction with a signed origin in extrinsic version 5, a user must create the transaction with an instance of at least one extension responsible for authorizing Signed origins with a provided signature.
As stated before, paritytech/polkadot-sdk#3685 comes with a Transaction Extension which replicates the current Signed transactions in v5 extrinsics, namely VerifySignature. I will use this extension as an example on how to replicate current Signed transaction functionality in the new v5 extrinsic format, though the runtime logic is not constrained to this particular implementation.