* [cli] run cli cmd tests on Ci only

* [cli] run abi build in release and with no-default-features

* [cli] add flag to `build` command to generate abi

* [cli] fix abi console output

* [cli] restore +nightly

* [cli] separate generate-abi command

* [cli] move nightly check to exec_cargo fn

* [cli] add test for generate_abi