- Update to version 0.99:
* new wxi manifests for harfbuzz, icu, dlfcn, speex, wavpack, openexr,
ilmbase, gcc-c++, gsm & libtheora
* update libidn2 to 2.0.4
* update libvirt to 5.0
* update openssl to 1.1.0h
* update spice-gtk to 0.36
* make spice-gtk ship with GStreamer WASAPI plugin instead DirectSound
* various dependencies wxi fixes
* wixl: fix crash when Feature.Level isn't specified
* fix rhbz#1629516 "string table load failed!" on some MSI
* add check-wxi: validation of wxi files on Fedora
* translation updates, build-sys improvements