add module for constructing statehandlers as simple finite state machines, to support readable
definitions, type checking, and testing

Add the ability ot dispatch a synchronous event to the state machine and wait for a result

Use a full transition map for events to make them more flexible

support a transition that applies to any source state

Add ability to get identifier for this instance of the state machine

Allow each instance of fsm to get a unique instance of outside dependencies

remove universal events, add notifications, add params struct, make event name an interface

This reverts commit 206d210.

remove world by indentifier for simplicity, rename world to environment

add more data about why state handlers fail

add begin function from base group to fsm group

simplify builders for state, extract state machine from event machine

adds a utility class for testing state machines by allowing contexts to actually be replayed with a
given event machine

Rename applyTransition to action to match actual FSM concept it represents

rename event -> trigger with context
rename eventMachine -> eventProcessor
rename eventProcessor.Event -> eventProcessor.Generate
rename stateHandler -> stateEntryFunc

track various DSL errors in event builder so it fails when used