Move OC\Files\Storage\Shared to the right namespace

apps/dav/lib/Connector/Sabre/Node.php

apps/dav/tests/unit/Connector/Sabre/DirectoryTest.php

apps/federatedfilesharing/tests/TestCase.php

apps/files_sharing/appinfo/app.php

apps/files_sharing/lib/Cache.php

apps/files_sharing/lib/MountProvider.php

apps/files_sharing/lib/Scanner.php

apps/files_sharing/lib/SharedMount.php

apps/files_sharing/lib/SharedPropagator.php

apps/files_sharing/lib/SharedStorage.php

apps/files_sharing/tests/CacheTest.php

apps/files_sharing/tests/SharedStorageTest.php

apps/files_sharing/tests/TestCase.php

apps/files_versions/tests/VersioningTest.php

lib/private/Encryption/EncryptionWrapper.php

lib/private/Files/Storage/Common.php

lib/private/Files/Storage/Wrapper/Wrapper.php

lib/private/Files/View.php

lib/private/legacy/helper.php

lib/private/legacy/util.php