Remove quotes from key names and numbers

[KilledByAPixel]

It should be save to remove quotes around key names and number values and add them back in when uncrushed.

This should result in smaller crushed strings in nearly all cases.

The downside is that right now the input string can be anything, doesn't need to be json. This would require that the string is valid json. Maybe a flag that defaults to false that can do additional crushing?

[KilledByAPixel]

check out https://jsonurl.org/ and https://github.com/jsonurl/jsonurl-js