Feat(2d): Add Camera Node

[devmuhnnad]

This PR adds a camera node, ported from Motion Canvas with minor tweaks to make it work in this codebase.

What I did

This pull request introduces a new Camera component to the 2D rendering library, enabling advanced scene navigation features such as zooming, centering, and following paths. The changes also update the core vector math utilities, add a usage example, and integrate the camera into the default template project. The most important changes are grouped below:

Core Math and Utility Improvements

• Added transformAsPoint and transform methods to Vector2, supporting matrix transformations needed for camera operations.
• Imported Matrix2D utilities as dependencies for the new vector methods.
• Added a parentToWorld computed property to Node, simplifying matrix calculations for camera overlays.

Example and Template Updates

• Added a new camera-example.tsx scene demonstrating basic camera usage, including panning between positions.
• Updated the template project's entry point to use the new camera example as the default scene.