Principals integrity

[s-vitaliy]

Entities integrity

Once one of the following resources is modified:

• principal
• action_set
• policy_set
• resource_set

Boxer should validate that the resource matches the schema. This can be achieved by wrapping the corresponding repository with a facade as it is done in WithTracingFacade trait.

[s-vitaliy]

Need to think about it. Maybe it's a good idea to leave as is.