More reactor queue dependency removal

[TIHan]

This is another change that is going to remove more cases that depend on the reactor queue. It's a little tricky as we need to make a change in incremental builder to grab cached data but also check to see if the data is still valid.

In order to make the internal state of the incremental builder sane, I created an immutable state object that contains all the necessary items such as timestamps, bound models, etc. When we need to update the state, we just update a single value, currentState. This makes it a lot easier to rationalize, especially when we want to concurrently grab info from the state.

[TIHan]

This is now ready.