Add visibility to all properties and move static keyword

apps/settings/lib/Controller/AuthSettingsController.php

apps/user_ldap/lib/Jobs/UpdateGroups.php

apps/user_ldap/lib/Proxy.php

apps/user_ldap/lib/Wizard.php

lib/private/Files/Cache/QuerySearchHelper.php

lib/private/Files/Filesystem.php

lib/private/Search/Result/File.php

lib/private/Setup.php

lib/private/legacy/OC_App.php

lib/private/legacy/OC_Hook.php

lib/private/legacy/OC_Image.php

tests/lib/App/AppStore/Fetcher/AppFetcherTest.php

tests/lib/DateTimeFormatterTest.php

tests/lib/Preview/GeneratorTest.php

tests/lib/Share/ShareTest.php

tests/lib/TestCase.php