RepositorySearchController now takes all request parameters as MultiValueMap to execute query methods. For parameters mapping to a managed resource we try to interpret the given parameter value as URI to actually trigger the URI-to-entity resolution through the newly registered UriToEntityConverter.
The latter is now registered with the default ConversionService registered so that it's
A lot of cleanups in RepositorySearchController. Removed some obsolete prints to the console to reduce log output during test execution.
Related ticket: DATACMNS-678.