Daniel Liang

Rename all instances of stop tactic to halt tactic

1

## Please fill out the following before requesting review on this PR ### Description Renames all instances of stop tactic to halt tactic. ~~`tactic.proto` is now inconsistent with `HaltTactic` with...

Example play to FSM

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## Please fill out the following before requesting review on this PR ### Description Converts the Example Play from a co-routine to an FSM. The example play was moved to...