* contracts: Add ext_transfer call
This call allows contracts to send balance to any account
contract or not. Previously, the only way to do that was
though ext_call.
* Apply suggestions from code review
Co-Authored-By: Nikolay Volf <nikvolf@gmail.com>
* The define_env! macro does not allow for trailing comma
* Update frame/contracts/src/exec.rs
Co-Authored-By: Nikolay Volf <nikvolf@gmail.com>
* Bump spec version
* Do not use nested gas meter
* Use explicit 0 or 1 as return value
* Remove superflous intermediate binding
Co-authored-by: Nikolay Volf <nikvolf@gmail.com>