ntfs: parse REPARSE_TAG_WOF

Introduce parsing support for REPARSE_TAG_WOF reparse points. Rename
ntfs_make_symlink() to ntfs_parse_reparse() since it now handles both
symlinks and WOF reparse tags. Introduce NI_WofCompressed flag to
indicate files compressed via Windows System Compression (WOF), and
configure compressed block size accordingly (12 to 15 bits based on the
format).

Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>