v0.79.6 patchlevel 1

• Most patches from the Debian maintainer have been applied, up to Debian version 0.79.6-5. Patches that are purely Debian specific have been omitted.
• This release keeps the debian/ folder untouched, with only the patch/series file adjusted. Building the package has not been tested.
• Added support for BDXL-QL (quadruple layer, 128GB)
• Added support to compile a CLI-only version, without the GTK dependency (only glib2), compile with:
  $ CLI_ONLY=1 ./configure && make clean all
• Added back support for Windows (was removed in latest upstream version)
• All regression tests have been enabled and confirmed passing under Linux64 (normal and CLI-only), Windows32 and Windows64
• A few tweaks and fixes around have been done while massively amending the source files to make the CLI-only version possible. This hopefully removes a few quirks without adding too many.
• Precompiled binaries are available for Windows, consider this a "portable version" of the app: there is no installer.