N3 operation retractions
requested to merge github/fork/VeljkoMaksimovic/n3_operation_retractions into sprint-dynapi-2022-feb-staging
Created by: VeljkoMaksimovic
@chenejac noticed that n3 templates dont work with complex objects as input, which can be the case when output of one operation, like SPARQL is input to N3 template operation.
This PR is not yet done, and needs more changes