Suggestion: support for Pyleus yml topologies

[westover]

Super selfish idea: with the death of Pyleus to smooth some transitions maybe adding support for pyleus yaml files in addition to the python dsl and clojure

[dan-blanchard]

@westover We don't actually support the Clojure format anymore. It's just the Python DSL these days.

I can't imagine directly supporting the old Pyleus YAML files would be very easy. The only thing like this I'd maybe consider is providing a tool to convert Flux YAML files to the Python DSL, since we already do the opposite with the sparse run command.