feat: make second callback arg useful #42
Merged
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BREAKING CHANGE: previously the second arg to the callback function had a single
dataproperty on it representing the lastStateobject seen by the top-level machine. Now it hasstate(same asdatawas previously), and some bound APIs for interacting with the statechart:.hasTag(),.broadcast(), and.matches(). These are the same APIs available on theComponentTreeinstance but made available through the callback args for convenience.