Christoffer Holmstedt authored Jan 13, 2019 and Peter Hutterer committed Jan 21, 2019

The Contour RollerMouse have a button for "double click" which emulates
a double click. The two clicks are so close together that with libinput
heuristics it looks like a worn-out button and triggers debouncing
functionality.

This commit adds support for the RollerMouse Free 2 and RollerMouse
Re:d.

Fixes #204

(cherry picked from commit fc029e3f)