Feature: enhanced transcript mode

[erkyrath]

Interpreter-managed transcript mode which writes out the GlkOte update stream for any game. That would either be a sequence of JSON objects or an array containing JSON objects.

(A single array is better, but requires the interpreter to back up and overwrite the final ] every time output is added.)

(Bonus: timestamp each object.)

We could then have tools to parse the JSON and create a formatted transcript, a blow-by-blow replay, or whatever else you wanted.

[erkyrath]

Discussion suggests doing this for every game, by default. That way we could all stop worrying about SCRIPT ON.

The app should provide a simple transcript viewer to render the JSON stream in static form. But in theory we could have UI to reconstruct the status line at any point, etc.

[erkyrath]

Of course saving every game forever would eventually clog the user's storage. "Save the last N transcripts" is more reasonable. Provide a preference maybe.

[erkyrath]

This is now released, at least as a first draft.