Move to Gitea: install scripts, links and a release script that builds the DEBs, RPMs, Arch package and a new AppImage

packaging/appimage/omaphoto.sh

@@ -0,0 +1,3 @@
+# The AppImage's model, MIME data and HEVC decoder come first.
+export XDG_DATA_DIRS="$APPDIR/usr/share:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
+export LIBHEIF_PLUGIN_PATH="$APPDIR/usr/lib/libheif"