Scan dir and subdir to get symlinks with specified endpoint.

ScanDir: retrieve filenames in a specific directory.

ScanDirDepth: retrieve files in a specific directory and his sub-directory depending on depth argument.

ScanDirDepthFileInfo: retrieve files in a specific directory and his sub-directory depending on depth argument.

ScanDirFileInfo: retrieve []os.FileInfo from a defined directory.

ScanDirFileInfoMask: retrieve []os.FileInfo from a defined directory "masks" is used to filter files that are kept.

ScanSubDir: retrieve files in a specific directory and his sub-directory.