Improve LightControl Javadoc & Add Light Type Validation

[capdevon]

This PR refactors the Javadoc for the LightControl class to enhance clarity and completeness. It also introduces the validateSupportedLightType() method for robust light type validation.

1. Class-level Javadoc: Expanded description outlining the control's purpose and typical use cases, particularly regarding dynamic light behavior.

2. Constructor Javadoc: Clarified parameters and added @throws for invalid light types.

3. Robust Light Type Validation: Implemented the new validateSupportedLightType() method. This ensures that the LightControl only accepts PointLight, DirectionalLight, and SpotLight instances, providing earlier error detection and preventing unexpected behavior with unsupported light types. This method is called in relevant constructors and setters.

4. New Feature: Added axisRotation property to LightControl, enabling precise control over which of the spatial's world axes (X, Y, or Z) defines the direction of the light when using SpatialToLight synchronization. This allows for more flexible alignment of lights with complex models.

[capdevon]

Hi @yaRnMcDonuts ,
Please hold off on merging this class for now. I'd like to do some further verification on its functionality.
I'll let you know as soon as it's ready ;)

[capdevon]

I think the PR is ready now!