Pass large strings as ubyte on code_fetch

[j33n]

Finishes 1113

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[ry]

@j33n This one requires a lot more pipe laying. If you're interested, you can probably trace the compile errors.. that said, this isn't the best intro issue. I'll try to tag some issues with "good for newcomers" today. Thanks for the effort!

[j33n]

Thanks @ry, will keep an eye out for beginner friendly issues