Consider combining of `Commit` and `Start`

[smuu]

Before working on this, please check if this even makes sense.

Is it necessary to have Commit and Start separately? Could it be enough to have Start?

[tty47]

when we have the Commit state, is like an intermediate state between Preparing and Start, the question is, are we using it to add any config to the resources or just pass through it to Start?, if we are using it to add any custom field before the start, I think is useful, otherwise, we could remove it and go from Preparing to Start

[smuu]

open for discussions