Add select combining characters to bundled fonts

[mojavelinux]

In order to add diacritical marks to certain characters, such as small capital letters, fonts will use combining characters instead of dedicated characters. Add the combining characters in the range U+0300-U+030f for this purpose. (If a larger range is needed, we can add it later).

Here's an example of a letter that uses one of this characters: ᴇ́ (small capital E with an acute accent)

[mojavelinux]

With this added, it's possible to support the smallcaps transformation (with help from an extended converter) for non-ASCII letters. See docs.asciidoctor.org/pdf-converter/latest/theme/text/#transform