v0.4.0

• Fonts list updated: fontist/formulas#206
• Refactor: move dl Presentation XML processing to be generic: metanorma/isodoc#606
• Move termnote delimiter processing to Presentation XML: metanorma/isodoc#606
• Do not add figure footnotes to figure key: metanorma/isodoc#606
• Refactor xrefs: metanorma/isodoc#606
• Remove special processing of admonitions, as it duplicates ISO: metanorma/isodoc#613
• Consistent table and figure footnote delimiters in Presentation XML: metanorma/isodoc#613