License texts bundled into THIRD_PARTY_LICENSES.txt by tools/collect_licenses.py (unchanged copies).

lgpl-3.0.txt        https://www.gnu.org/licenses/lgpl-3.0.txt
gpl-3.0.txt         https://raw.githubusercontent.com/spdx/license-list-data/v3.24.0/text/GPL-3.0-only.txt
lgpl-2.0.txt        https://www.gnu.org/licenses/old-licenses/lgpl-2.0.txt
libvorbis-COPYING   https://raw.githubusercontent.com/xiph/vorbis/v1.3.7/COPYING
libogg-COPYING      https://raw.githubusercontent.com/xiph/ogg/v1.3.5/COPYING
flac-COPYING.Xiph   https://raw.githubusercontent.com/xiph/flac/1.4.3/COPYING.Xiph
opus-COPYING        https://raw.githubusercontent.com/xiph/opus/v1.4/COPYING