Adding Keyboard Input and Key Binding Support

[mdwigley]

Description

This PR introduces a key binding system and keyboard-based scrolling support across all relevant controls. It implements IKeyBindingService and KeyBindingService to manage global, window, and control-scoped key bindings. A new ScrollbarBehaviorKeyboard class allows scrollable controls to respond to arrow key input. All affected controls and presenter classes have been updated to accept and propagate the key binding service.

Related Issue

• Resolves Keyboard Input and Key Binding Support #65

Motivation and Context

Keyboard navigation and key bindings are essential for improving interactivity, accessibility, and developer control over UI behavior. This change standardizes keyboard input handling across the UI framework.

How Has This Been Tested?

• Verified that all affected projects and controls compile successfully.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Asset change (adds or updates icons, templates, or other assets)
• Documentation change (adds or updates documentation)
• Plugin change (adds or updates a plugin)

Checklist:

• I have read the CONTRIBUTING document.
• My change requires a change to the core logic.
  • I have linked the project issue above.
• My change requires a change to the assets.
  • I have linked the asset issue above.
• My change requires a change to the documentation.
  • I have linked the documentation issue above.
• My change requires a change to a plugin.
  • I have linked the plugin issue above.