Renaming and consistency

[maurei]

Closes #572 and #317

• style: rename repository and service layer: DefaultResourceRepository and DefaultResourceService and all related interfaces (see RFC: Type rename proposals #317)
• style: rename ContextEntity --> ResourceContext (also see RFC: Type rename proposals #317), and rename every reference to a resource to Resource (EntityType --> ResourceType, TEntity --> TResource)
• style: rename: DependentType, PrincipalType --> RightType, LeftType. Usage of DependentType and Principal type as inspired by EF core was not technically adequate.
• chore: remove redundant bindings throughout entire codebase
• refactor: regroup hook container and executors in to pipeline-specific interfaces
• style: rename IGenericProcessor to IHasManyThroughUpdateHelper (see RFC: Type rename proposals #317)
• style: rename IGenericProcessorFactory to IGenericServiceFactory. This is more up to date because it is not only used to instantiate operation processors, but any generic service can be instantiated with it.