Add ligature for `/**`

[marvinruder]

Monaspace offers a ligature for the character sequence /*, which looks good on its own, but when typing /** to start e.g. a Javadoc or JSDoc comment, only the first two characters get replaced by the ligature, the last asterisk remains unchanged and is now on a different height than the first one:

This does not look too aesthetically pleasing. Any chance we might find a ligature for the entire /** in a future version of Monaspace?

[Ayesh]

They are used quite extensively in the PHP world as well.

[iwangbowen]

I encountered the same problem and had to remove dlig to make it look better

[techieshark]

I had to remove dlig and ss07 to make it look better

[pvanb]

Maybe this belongs in a separate issue, but the sequence **/ also comes up and would benefit from its own ligature as well:

[kieran-ryan]

Maybe this belongs in a separate issue, but the sequence **/ also comes up and would benefit from its own ligature as well:

@pvanb, I have captured this as a separate issue (#122) as there appear to be a few unusual patterns that occur when using globs.

[idan]

Fixed in ca8015b