Block actuation while in the pre-enable state

[adeebshihadeh]

Currently, only the Honda safety handles this.

[adeebshihadeh]

@sshane is this done?

[sshane]

I believe the topic of this PR was to enforce pre-enable safety when enabling with gas pressed, however we now allow steering in pre-enable state and longitudinal pre-enabling is done with the common checks in safety.h. Relevant PRs: #884 and #1121

We still need to block actuation when pre-enabling at a stop in is this draft PR which I'm trying to clean up: #1123