Touchpad for Microsoft Surface Pro doesn't show GESTURE_SWIPE_BEGIN
in comfortable-swipe debug due to unresolved bug from libinput.
This fix temporarily patches that issue by adding UPDATE pattern to
the gesture begin regex.
* Add configurations to status
* Update comment of status
* Add config command
* Modify README
* Add EPSILON instead of subtract for a more reliable >= threshold
* Use std::unique_ptr for stop service
* Use std::unique_ptr for stop service
* Add status command
* Prefer to use std::array to avoid memory leaking in buffer
* Perform xdo key sequence before output message
* Fix missing swipe_gesture header in regex implementation
