change letter symbols to MuchUniCode

change letter symbols to MuchUniCode

Replace symbols by spelling out a more descriptive phrase without as much
encouragement.

Slight increase in glyph coverage, with different advantages, notably:
- Double-struck letters include C from legacy letterlike block.
- Fraktur letters with legacy black-letter C.
- Missing subscript letters for c and d replaced by soundalikes.
- Squared O might be an exceptional emoji :o2: (blood type).
- No good representation for rotated U, substitute big ∩.
- Epigraphic inverted M from latin extended D.
- Include negative enclosed variants instead of missing lowercase.
- Circled japanese and korean to spell out mu-ch.

Count each item with a number in similar style if possible.
Reorder considering those with only single digits available.

Most characters generated by: echo MuchUniCode |
perl -mcharnames -CO -E'
	my $line = <STDIN>;
	print $line =~ s{\S}{
		$name = uc "$_ $&";
		$name =~ s/CAPITAL/SMALL/ if $& =~ /\p{Ll}/;
		chr(charnames::vianame($name) || 0xFFFD)
	}egr for @ARGV;
' \
	'MATHEMATICAL MONOSPACE CAPITAL' \
	'MATHEMATICAL BOLD CAPITAL' \
	'MATHEMATICAL ITALIC CAPITAL' \
	'MATHEMATICAL BOLD ITALIC CAPITAL' \
	'MATHEMATICAL DOUBLE-STRUCK CAPITAL' \
	'MATHEMATICAL SANS-SERIF CAPITAL' \
	'MATHEMATICAL SANS-SERIF BOLD CAPITAL' \
	'MATHEMATICAL SANS-SERIF ITALIC CAPITAL' \
	'MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL' \
	'LATIN CAPITAL LETTER TURNED' \
	'MATHEMATICAL FRAKTUR CAPITAL' \
	'MATHEMATICAL BOLD FRAKTUR CAPITA' \
	'MATHEMATICAL SCRIPT CAPITAL' \
	'MATHEMATICAL BOLD SCRIPT CAPITAL' \
	'MODIFIER LETTER CAPITAL' \
	'LATIN SUBSCRIPT SMALL LETTER' \
	'PARENTHESIZED LATIN CAPITAL LETTER' \
	'CIRCLED LATIN CAPITAL LETTER' \
	'SQUARED LATIN CAPITAL LETTER'