Implement string.format
#79
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- Almost entirely compatible with PRLua under the C locale
- Minor differences in the handling of '%q';
- Invalid UTF8 is escaped rather than passed through
- math.mininteger is represented as `(-9223372036854775807-1)`
rather than `0x8000000000000000` due to parsing differences
in Piccolo.
- Supports a few extra specifiers:
- %b and %B for binary integers (C23)
- %F for uppercase floats
- %C for encoding a unicode codepoint as utf8
- %S for utf8-aware strings
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Implement
string.format. This is very messy in its current state and needs work to clean up the sequence part, but it works, and supports calling back to lua tostring metamethods.