SubmitSignedTransaction
* Bring back SubmitSignedTransaction. * Fix long lines. * Add missing docs. * Update core/primitives/src/crypto.rs Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com> * Update node/runtime/src/lib.rs Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com> * Update core/primitives/src/crypto.rs Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>