Zq: Command-line ZON processor

[tensorush]

Added ZON schema generation:

ZON Schema

I’ve been able to add ZON schema generation to zq: For instance, here’s how to generate this Build.zon.zig schema from this build.zig.zon (or, see gen step): # you can also specify other types, see `zq -h` zq schema -e "name = enum { zq }" build.zig.zon For a more general example see generateSchema test. I’m also planning to add support for: Type checking enum literals. Converting array’s with simple literal elements of the same type to slices, instead of structs.