update to current ShExJ (#3192)
update to current ShExJ (#3192)

* ~ update to ShEx 2.2

* ~ improve usability of shexj

1. sort list of shapes to serialize
2. place ShapeDecls on their own lines
schemaorg/schemaorg,schemaorg/schemaorg,schemaorg/schemaorg,schemaorg/schemaorg,schemaorg/schemaorg