* Copy-Pasta Call code from mock Rococo to mock Westend runtime * Update Westend client to include signing and call related code * Add missing part of license header * Move `account_info_storage_key` to `polkadot-core` crate
* Implement fake rococo runtime. * Generate correct storage key. * cargo fmt --all * Move client-rococo. * Satisfy clippy. * Apply suggestions from code review Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com> * Address review comments. * Clippy again. Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>