Remove switch operator, implement simple fallback core operator, use …#2685

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toots wants to merge 2 commits intomainfrom switch-transitions

+148-462

Commits on Oct 11, 2022

Remove switch operator, implement simple fallback core operator, use cross to define top-level fallback operator, define switch using it.
toots
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Don't apply cross if no transitions are defined.
toots
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