Motion Sensor / Gyro Aiming support

[AL2009man]

One year ago, I made a request on adding Gyro Aiming support (#418), one year later: I decided to attempt to add gyro aiming support myself, with assistances.

Thus: this adds Gyro Aiming support for compatible controllers such as PlayStation and Nintendo Switch controllers! Gyro Aiming is enabled by default for Crosshair/Aiming only. Portions of this feature is powered by GamepadMotionHelper (but a fork of a fork to allow easier C compatibility layer) to handle Gyro Calibration and Gyro Space orientation (Player Space and World Space)

this new addition will add various gyro-related features that is known to be featured in some commercially released games. while not everything is feature, the necessities are in:

• Gyro Sensitivity sliders for both Camera and Crosshair Aiming.
  • Gyro Crosshair is enabled by default
  • Gyro Speed scale are based on Natural Sensitivity Scale / Real World Sensitivity
    • for example: 1.00 is equivalent to 1:1 Controller Movement, 2.50-onwards will multiply. This only applies to [Gyro Speed]
    • 2.50 is the default gyro sens, consistent with selected games that uses RWS.
    • X/Y Output Mixer** can be used to reduce vertical or horizontal ratio for both Gyro Speed and Gyro Crosshair Speed.
      • Enabling "Gyro Advanced Settings" will let you change the Gyro Speed's X and Y Camera movements individually. (do note that "Gyro Speed X" doubles as a "Unified Gyro Speed' slider, if you disable the toggle, and then re-enable the same toggle:it'll reset your Y Axis setup in the process)
• Gyro Orientation
  • Yaw (set by default)
  • Roll
  • Local Space
  • Player Space
  • World Space
• Gyro Calibration
  • Gyro Calibration UI (within Gyro Settings) - pressing "Initiate Gyro Calibration..." will start the manual calibration process. this gives you enough time to place the controller on a flat surface, if it fails: you can press the same button to restart the calibration process.
  • Gyro Auto-Calibration - There are three methods:
    • While In Menus: While the Menu dialog is opened, Gyro Auto-Calibration will begin whenever the controller is already placed on the ground, calibration stops when you pick up the controller and tilt around. This is the default
    • While Stationary: Same as While In Menu, but will attempt to Auto-Calibrate at anytime when the Controller is placed on the ground (or detects very little movement) and calibrates continuous
    • Always: Will try to Auto-Calibrate whenever possible, if it can't be confident within a certain threshold (if it drops below 50% internally): it'll try to autocalibrate again.
  • Gyro Calibration button - Pressing the View Button on your Xbox controller (as an example, assume it has Gyro support!) will instantly calibrate itself.
• Gyro Activation Modifier (Always On, Toggle, Hold)
  • While using Toggle or Hold function, this requires assigning "Gyro Activation Modifier" to any of the Input Rebinds.
• Smoothing, Tightening, Deadzone and Invert Y/X.

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This PR also includes some quality-of-life changes on the Inputs side that includes:

• Centralized crosshair functionality from Decouples Mouse Crosshair Speed from Mouse Speed #676

[AL2009man]

after a series of hardships, despite issues): I can confidently say that this PR is 99% complete!

the reason why you see a couple of more commits is due to getting Gyro Autocalibration to work properly, it took a while to get there (due to lack of a proper debug log, but recently got the message notes working properly inorder to debug and fix), but it's pretty much lock-in. (edit: well, as long as I don't stop any more bugs)

All that's left is the maintainer to review and push it. all future Gyro-related changes will have to be reside in a separate PR