Refactor RepositoryComponent/s

Currently a RepositoryComponent is initialized during PAT. Therefore RepositoryComponent requires a lazyInit.
If we move the actual creation of the RepositoryComponent's to AfterBeanDiscovery, we don't need such lazy init "hacks".

IMO we should also split the RepositoryComponent into a data object and a initializer as it currently feels very unstructured.
Same applies for the RepositoryMethod and RepositoryEntity.

We could also allign the naming a little bit:
RepositoryComponents -> something MetadataStore or MetadataManager
RepositoryComponent -> RepositoryMetadata
RepositoryMethod -> RepositoryMethodMetadata
RepositoryEntity -> EntityMetadata