This is a re-do of #205, which was discovered to break ACIS ops tests. This is pending update of their tests.
Per discussion on slack ("looking at the commands associated with the letg state key" in ska-dev on Aug 12), add a new intermediate state to the grating states to indicate the movement time between INSR and RETR.
Testing
[x] Passes unit tests on MacOS, linux, Windows (at least one required)
I thought they still hadn't updated their tests for this but I'm fine to track that by the skare3 masters testing failures until those failures go away.
Description
This is a re-do of #205, which was discovered to break ACIS ops tests. This is pending update of their tests.
Per discussion on slack ("looking at the commands associated with the letg state key" in ska-dev on Aug 12), add a new intermediate state to the grating states to indicate the movement time between INSR and RETR.
Testing