UCM Balance Check

[NickJ202]

Before AOS 2, we did not have a good way to ensure the UCM had the correct amount of wAR to fulfill orders, but now with .receive, we should be able to run a balance check on wAR and wait for the result before fulfilling an order.

The current UCM process can not use this function because it's not an AOS 2 process. For development here, we should create a new staging UCM process, and then hard fork the existing UCM when the feature is ready to release.