Artifact inheritance of representation properties from templates

Origin flow/engineering/engineering.yml 52:5
Uri engineering://nasdanika/modules/core/modules/flow/issues/style-inheritance-from-templates
Target Flow
Cascading inheritance, merging of properties. Would allow to define a library of artifact templates (building blocks) and assemble composite artifacts from them. E.g. cloud components - storage, compute, cache, networking. Generated diagrams would have styles like images readily available.