Rsigns from LH83

Added oriscus on pressus, but not on salicus because there is no way to prove this is not a scandicus

Changed two puncta mora from LH83 to episemata (found in H, in the more recent part, cf. https://www.e-codices.unifr.ch/en/csg/0391/015 )

This has a textual error, it's Virgo Mater in the BR