Added: libgamemodeauto0, vkBasalt,  mangohud

- epm repack.d/common.sh: skip alt specific on non ALT systems
- epm pack.d/generic-appimage.sh: get VERSION from X-AppImage-Version field of a desktop file
- epm repack: run add_libs_requires by default
- epm play viber: use AppImage
- epm play: add tonkeeper
- epm repack: add net.downloadhelper.coapp.noffmpeg
- epm play r7-office: update for support new versions
- add_chromium_deps(): remove libatopology.so.2
- epm repack balena-etcher: move to /opt
- epm repack: add hack for get AppImage version from URL
- epm play: add neovide
- epm repack librewolf: fix repacking

* Update switch-to-nvidia.sh

* исправлен вывод переменной USED_KFLAVOUR в терминал
* добавлена проверка на добавление аргументов в grub (исправляет дубляжи если запускать с аргументом force)
* бэкап конфига grub создается только при условии изменения в конфиге

- epm-sh-altlinux-contents-index: fix update content index
- epm repack plex-desktop: fix repack with eepm-rpm-build
- epm-search: don't use -- in dnf/yum search
- set_sudo: check sudo twice
- distr_info: use lastest ID_LIKE word
- distr_info: fix Android version detection
- epm play yandexmusic: update download package name
- repack.d/generic.sh: disable /usr/lib/.build-id generating
- epm repack google-chrome-stable: fix summary, add conflicts to google-chrome-preinstall
- repack.d/unigine-superposition.sh: stop require libQt5Test.so.5
- epm play: rename yandexmusic.sh to yandex-music.sh
- epm play: don't check if a play script is executable
- epm repack teamspeak3: add libwebp6 install (fix github issue 64)
- epm repack teamspeak3: remove unusable libqwayland*
- epm play teamspeak: update versions
- epm play: add singularityapp (fix github issue 49)
- epm requires: check every file separately
- epm repack singularityapp: remove common libs
- epm play: add vk-messenger (fix github issue 50)