* Avoid bad pattern of wildcard fees

* spelling

* fmt

* Fix runtimes

* spelling

* bump versions, substrate and beefy

* bump substrate

* cargo +nightly fmt

* add cargo-fmt check to ci

* update ci

* fmt

* fmt

* skip macro

* ignore bridges

* Add xcm-simulator and xcm-simulator-example.

* Abstract xcmp and dmp handling.

* Use mock message queue.

* Xcm simulator example unit tests.

* Use relay chain block number on sending msg.

* Fix typo.

* fmt

* more fmt

* Fix deps.