Code to update in OV XML

[ebeshero]

• Check for other language phrases that we've tagged <emph> and change to <foreign xml:lang="la"> or "fr" or "it" etc depending on the language.) Check on language codes from TEI Guidelines etc.)

• Mentions of characters from other works of fiction within OV don't need type/subtype encoding. We can remove this.

• To help us distinguish references to OV characters from references to other external fictional characters, we simply need to add _OV to the ends of xml:ids for all OV characters. Review OV characters in the SI and local si draft files accordingly.