cubicweb-container #4282592 security weaver: help automate complex entity types security [validation pending]

In a container with a cascade of subcontainers, hand-writing etype security snippets is tedious.
We should provide an helper similar to config.set_rdef_security.

prioritynormal
typeenhancement
done in2.7.0
load0.500
load left0.000
closed by#670e54c03d15 Config: provide a .setup_etypes_security helper
patchConfig: provide a .setup_etypes_security helper [applied]