File helper improvements
Included in this release:
- FileInfo: The
factory()method now returns specialized instances by extension (e.g.JSONFile). - FileInfo: Added
getFolder()to get theFolderInfoinstance. - FolderInfo: Added
getSubFiles(). - FolderInfo: Added
isEmpty(). - FolderInfo: Added
createFileFinder(). - FileFinder: Added
getFileInfos()to fetchFileInfoinstances. - FileHelper:
getExtension()no longer creates object instances.