Ability to halt/resume message-lane pallet (#472)

* halt/resume message-lane pallet

* fmt

* Update modules/message-lane/src/lib.rs

Co-authored-by: Tomasz Drwięga <[email protected]>

* include weights in halt/resume operations

* remove trailing space

* set_owner

* Shorten doc comment length

Co-authored-by: Tomasz Drwięga <[email protected]>
Co-authored-by: Hernando Castano <[email protected]>