Make everything an op

[samdoshi]

Lots of changes here, the main result being all keys, arrays and variables have been converted to ops.

[pq]

Maybe more descriptive field names here?

[pq]

Will there be more types here? I'd be inclined to name it something like process_result_value_type_t (or kind). Or maybe if it's binary, just a has_value bool?

[pq]

I realize of course, that I'm jumping in mid stream so feel free to ignore... And in which case, pardon the distraction! :)

[pq]

Do we have max and min handy? I wonder if this would read better as

a = max(a, 63);

... on second thought maybe not and perhaps not idiomatic C besides!

[pq]

More (rookie) questions about idiomatic C: why not if (!first_cmd && !op.returns) { ... ?

[samdoshi]

No reason, I'll probably change it!

[pq]

a += tele_patterns[pn].l; ?

[samdoshi]

Yes..., but that line is really just pre-existing code duplicated. I didn't want to change that just yet. At some point all of the pattern ops need a tidy up.