Switch to forked libid3tag from tenacityteam
Changelog:
- Fix null pointer dereference in id3_ucs4_length (CVE-2017-11550)
- Add CMake build system
- Remove autotools build system
- Install pkgconfig and CMake config files
- Apply patches from Debian, Fedora, Arch, and Gentoo
Signed-off-by: Algent Albrahimi <algent@protonmail.com>