* TransactionExtensions basic support for V5 VerifySignature and renames
* WIP: subxt-core v5 transaction support
* Subxt to support V5 extrinsics
* WIP tests failing with wsm trap error
* Actually encode mortality to fix tx encode issue
* fmt
* rename to sign_with_account_and_signature
* Add explicit methods for v4 and v5 ext construction
* clippy
* fix wasm example and no mut self where not needed
* fix doc example
* another doc fix
* Add tests for tx encoding and fix v5 encode issue
* add copyright and todo
* refactor APIs to have clear v4/v5 split in core and slightly nicer split in subxt proper
* rename Partial/SubmittableExtrinsic to *Transaction
* Remove SignerT::address since it's not needed
* doc fixes
* fmt
* doc fixes
* Fix comment number
* Clarify panic behaviour of inject_signature
* fmt