taglib: Update to version 1.12

taglib: Update to version 1.12

- Update from 1.11.1 to 1.12
- Update rootfile
- Changelog
   TagLib 1.12 (Feb 16, 2021)
    * Added support for WinRT.
    * Added support for Linux on POWER.
    * Added support for classical music tags of iTunes 12.5.
    * Added support for file descriptor to FileStream.
    * Added support for 'cmID', 'purl', 'egid' MP4 atoms.
    * Added support for 'GRP1' ID3v2 frame.
    * Added support for extensible WAV subformat.
    * Enabled FileRef to detect file types based on the stream content.
    * Dropped support for Windows 9x and NT 4.0 or older.
    * Check for mandatory header objects in ASF files.
    * More tolerant handling of RIFF padding, WAV files, broken MPEG streams.
    * Improved calculation of Ogg, Opus, Speex, WAV, MP4 bitrates.
    * Improved Windows compatibility by storing FLAC picture after comments.
    * Fixed numerical genres in ID3v2.3.0 'TCON' frames.
    * Fixed consistency of API removing MP4 items when empty values are set.
    * Fixed consistency of API preferring COMM frames with no description.
    * Fixed OOB read on invalid Ogg FLAC files (CVE-2018-11439).
    * Fixed handling of empty MPEG files.
    * Fixed parsing MP4 mdhd timescale.
    * Fixed reading MP4 atoms with zero length.
    * Fixed reading FLAC files with zero-sized seektables.
    * Fixed handling of lowercase field names in Vorbis Comments.
    * Fixed handling of 'rate' atoms in MP4 files.
    * Fixed handling of invalid UTF-8 sequences.
    * Fixed possible file corruptions when saving Ogg files.
    * Fixed handling of non-audio blocks, sampling rates, DSD audio in WavPack files.
    * TableOfContentsFrame::toString() improved.
    * UserTextIdentificationFrame::toString() improved.
    * Marked FileRef::create() deprecated.
    * Marked MPEG::File::save() with boolean parameters deprecated,
      provide overloads with enum parameters.
    * Several smaller bug fixes and performance improvements.

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>