add semActs and annotations to nodeConstraints

[ericprud]

TODO: jq says we lack tests:

jq -c '.shapes[]? | flatten(1)? | .. | select(.annotations)? | [.type, input_filename]' $(ls *.json | grep -v representationTests)
["TripleConstraint","1dotAnnot3.json"]
["TripleConstraint","1dotAnnotAIRIREF.json"]
["TripleConstraint","1dotAnnotIRIREF.json"]
["TripleConstraint","1dotAnnotSTRING_LITERAL1.json"]
["TripleConstraint","1dotPlusAnnotIRIREF.json"]
["TripleConstraint","1inversedotAnnot3.json"]
["TripleConstraint","_all.json"]
["TripleConstraint","kitchenSink.json"]
["EachOf","open3EachdotcloseAnnot3.json"]
["EachOf","open3Eachdotclosecard23Annot3Code2.json"]

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