Position some ogoneks and cedillas
Legalize catalan locl

Instead of using deprecated ldot we now use special periodcentered
glyphs.
Catalan changes in EBG08-Re
Add alternate a and g (only placeholder in EBG08-Re)
Add alternate a and g (only placeholder in EBG08-Re)

They will be addressed with cv21 and cv27, pushing alternate ß to cv47
and alternate AE to cv48.
Whatever had to change with the things changed before…