Finished implementation of ResourceRepository::get()
Unified the API of FileResource and DirectoryResource and introduced common base class AbstractResource
Implemented entry management for DirectoryResource
Implemented ResourceRepository::listDirectory()
Improved test coverage of GlobPattern
Implemented trimming of trailing slashes
Added support for tagging
Removed AbstractResource and removed path management from ResourceRepository
Changed FileResource::getAlternativePaths() to include the current path
Added ResourceDiscoveringInterface
Updated the README file