Duplicate initialisation of repositories

[Fantus]

Q	A
Bug fix?	yes
New feature?	no
BC breaks?	no
Deprecations?	no
Related tickets	fixes #217
License	MIT

Accessing a repository via EntityManger::getReposiory and direct injection via the dot notation of the repository will yield different instances of the same repository. This is caused by:

• Repositories are not injected into the ServiceLocator of ContainerRepositoryFactory as the required tag doctrine.repository_service is missing for our generated the repositories
• Even when injected (after adding that doctrine.repository_service) the ContainerRepositoryFactory::getRepository method cant resolve the repository as its injected with the dot notation and doctrine looks for the repository by class name
• Problem also exists for default repositories but simply tagging them does not work

Solution/Changes;
For the solid repositories:

• Tag the solid repositories so they get injected
• Switch to service id to class name
• Create a public alias to maintain old functionality

For generic default repositories (cant be tagged as all use the same class)

• Init default repositories via doctrine factory so its using ContainerRepositoryFactory and by that prevent duplicate initialisation
• Decorated ContainerRepositoryFactory to be table to return the sylius EntityRepository instead of the default doctrine one

[pamil]

Thank you, Justus! 🎉