Adding Animation Framework Integration

[mdwigley]

Description

This pull request introduces a complete animation subsystem for UI controls. It includes core animation types (AnimationHandle, AnimationBase) and animation nodes (CallbackAnimation, GroupAnimation, SequenceAnimation, WaitAnimation, PropertyAnimation). The AnimationBuilder and IAnimationBuilder interface provide a structured way to create property animations with easing and looping.

The system is integrated into Window and UserWindow classes, enabling animations to be enqueued, updated automatically each tick, and cancelled. Default interpolators for int, float, and SDL.Color are provided. Photon utility methods for hit testing, layout measurement, and rotated rendering were added to support animation workflows.

Related Issue

• Resolves Animation Framework Integration #67

Motivation and Context

UI Developers require a declarative and programmatic way to define and control animations for UI controls. This change allows smooth property transitions, grouping, sequencing, looping, and callback support without manual rendering adjustments, enhancing the overall expressiveness and responsiveness of the UI.

How Has This Been Tested?

• Ensure project compiles 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.