* Input: further work on remapping Xinput and begin work on remapping DS4
* Input: Improve pad_settings_dialog a bit and begin Remapping for XInput
* Input: begin evdev remapping and change all handlers to use cfg::string
* Input: finish work on remapping evdev
and some more crap
* Input: finish work on remapping Xinput and DS4
* Input: add DS4 Colors to DS4 config
* Input: Improve DS4 deadzone scaling
Jarves made some mistakes, so I'll fix them in the follow up commit
* Input: fix Jarves fixes on DS4 deadzone
and remove unnecessary usage of toUtf8
* Input: add primitive batterychecks to XInput and DS4
* Input: add mmjoystick remapping
* Input: Fix evdev and some Vibration issues
* Input: adjust capabilities to fix stick input for games like LoS 2
also fix threshold slider minimum
also add ps button to all the handlers
* Input: Further evdev work
based on danilaml code review and own debugging:
Fixed path issue, <= 0 issue, some captures, const, axis with same codes.
Adds a map to each device that differentiates negative and positive axis mappings.
adjusted rest of the file to tabs (ListDevices and beginning of threadProc)
* Input: use 20ms vibration update time for xbox one elite controllers.
* Input: Fix return type of Clamp()
* Input: Evdev Fix
* Input: Evdev Optional GetNextButtonPress
presumably better than the other
* Input: review changes
* Input: evdev: fix wrong index in axis handling
move bindpadtodevice down to keep consistency between handlers and not get crazy
* Input: evdev: fix expensive add_device in GetNextButtonPress
* cleanup
* Input: mmjoy: fix type
* Input: evdev: final fixes
* Input: evdev: exclude unnecessary buttons while mapping Xbox 360 or DS4
* Input: add deadzone preview by passing necessary values in callback
use 0.5 of max value for threshold in pad dialog
* Input: get rid of all-uppercase variables
