taglib: Update to version 2.1.1

taglib: Update to version 2.1.1

- Update from version 2.0.2 to 2.1.1
- Update of rootfile
- Changelog
    2.1.1
	 * Map ID3v2.3 IPLS frames to both ID3v2.4 TIPL and TMCL to have a consistent
	   behavior when using MusicBrainz tags with the property map interface.
	 * Fix missing include for `wchar_t` when using C bindings with MinGW.
    2.1
	 * Support for Shorten (SHN) files.
	 * Compile time configuration of supported formats: WITH_APE, WITH_ASF, ...
	 * Compile time configuration of data and temporary directories for unit tests:
	   TESTS_DIR and TESTS_TMPDIR.
	 * C bindings: Added taglib_file_new_wchar() and taglib_file_new_type_wchar().
	 * Preserve unicode encoding when downgrading to ID3v2.3.
	 * Do not store FLAC metadata blocks which are too large.
	 * Fix segfaults with String and ByteVector nullptr arguments.

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>