Add input configuration options

[AlanGriffiths]

   --mouse-acceleration arg              Select acceleration profile for mice 
                                         and trackballs [none, adaptive]
   --mouse-cursor-acceleration-bias arg  Constant factor (+1) to velocity or 
                                         bias to the acceleration curve within 
                                         the range [-1.0, 1.0] for mice
   --mouse-scroll-speed-scale arg        Scales mice scroll events, use negative
                                         values for natural scrolling
   --touchpad-disable-while-typing arg   Disable touchpad while typing on 
                                         keyboard configuration [true, false]
   --touchpad-tap-to-click arg           Enable or disable tap-to-click on this 
                                         device, with a default mapping of 1, 2,
                                         3 finger tap mapping to left, right, 
                                         middle click, respectively [true, 
                                         false]
   --touchpad-cursor-acceleration-bias arg
                                         Constant factor (+1) to velocity or 
                                         bias to the acceleration curve within 
                                         the range [-1.0, 1.0] for touchpads
   --touchpad-scroll-speed-scale arg     Scales touchpad scroll events, use 
                                         negative values for natural scrolling
   --touchpad-scroll-mode arg            Select scroll mode for touchpads: 
                                         [edge, two-finger, button-down]
   --touchpad-click-mode arg             Select click mode for touchpads: 
                                         [{area, finger-count}]

[codecov]

Codecov Report

Attention: Patch coverage is 88.88889% with 1 line in your changes missing coverage. Please review.

Project coverage is 77.31%. Comparing base (0613d64) to head (2bea04a).
Report is 448 commits behind head on main.

Files with missing lines	Patch %	Lines
src/miral/input_device_config.cpp	87.50%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3415      +/-   ##
==========================================
+ Coverage   77.27%   77.31%   +0.04%     
==========================================
  Files        1075     1074       -1     
  Lines       68401    68402       +1     
==========================================
+ Hits        52854    52886      +32     
+ Misses      15547    15516      -31     

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[Saviq]

Could we tell what the defaults are?

[AlanGriffiths]

Could we tell what the defaults are?

Not until the input system starts and libinput can report what the devices and their defaults are.

[Saviq]

Yay, my zapper tests will now work on Frame! (because I can turn mouse acceleration off)