Make simc output more machine-readable

[schoen]

Project

compiler

Describe the feature

Right now, when you compile a SimplicityHL file, you get textual output with either 2 or 4 lines, where the base64-encoded compiled program appears on line 2 and the serialized witness, if present, appears on line 4.

This isn't exactly hard to parse, but it feels kind of awkward to be specifying line numbers of output in order to retrieve these objects. Could we have an option to save these into files? Or an option for JSON output that we could then parse with a JSON parser, like with much of the hal-simplicity output?

[imaginator]

Not sure why I'm assigned this.

[delta1]

#180

[imaginator]

closed with #180