Add config parser
Add config parser

This parses config options and sets the default values if no other values were
selected.

Signed-off-by: David Herrmann <fb53b2ddb8d141e0cb39d7c67c2f81b6bc2eb0f7@googlemail.com>

dvdhrm/xf86-input-xwiimote,dvdhrm/xf86-input-xwiimote,dnschneid/xf86-input-xwiimote,dnschneid/xf86-input-xwiimote