Fix range lexing and quoting

[borgar]

Fix all known issues related to range matching in the library.

• Incorrect handling of names when they start with a digit:
  • Closes fix: a digit-led right sheet name is read as a sheet range end, not a range operand #63
  • Closes fix: a sheet name that begins with digits is lexed as a number and a name #62
• fixRanges incorrectly removing quote from foo:'bar'!A1 (where the quote signals that foo is a name):
  • Closes fix: a quoted prefix after a range operator loses its quotes, changing meaning #64
• Incorrect lexing of ranges that look like 'a':'b'!A1 as a 3D range:
  • Closes fix: range 'a':'b'!A1 is mistaken for sheet range a:b!A1 #66
• Incorrectly lexed names that started with a range followed by a period:
  • Closes fix: lex a name starting with a cell address and a period #67
• Missing functionality where names either side of a sheet range operator would not collapse. We now parse the ranges collapsed:
  • Closes Fix ranges and stringifyA1Ref to collapse repeated sheet names in 3D refs #68
• Issue where space after colon-like string caused beams:
  • Closes Incorrect tokenization with space after colon #69