Update python-asciimatics to version 1.15.0 / rev 8 via SR 1120394
    
    https://build.opensuse.org/request/show/1120394
    by user StevenK + anag+factory
    - Update to 1.15.0:
      * Dropped support for Python 2, Python 3.9 or above is now required.
      * Added support for ColouredText titles in MultiColumnLIstBox.
      * Added gutter option to Layout.
      * Added speed option to Sprite.
      * Fixed bug where moving focus between Frames resulted in no current focus.
      * Fixed internal state of RadioButton values to be consistent with selection.
      * Fixed handling of zero width modifiers.
      * Fixed image conversion to use modern PIL API and sort off-by-one height
        error.
      * Fixed parser bug returning list instead of colour tuple.
    - Drop patch move-to-python3.patch, included upstream.