Remove the SFML external dependency, include the SFML 3.0.1 system and
network libraries in third_party and adjust the build code, tools and
documentation accordingly.
Signed-off-by: Rafael Kitover <rkitover@gmail.com>
Also added the joystick plug, however it doesn't autoconnect.
to autoconnect manually you'll need to use snapctl
Permission will be asked by the snapcraft forums to allow it to autoconnect
Signed-off-by: Zach Bacon <zachbacon@vba-m.com>