Add example with Orthographic rendering

[sorskoot]

Add example of UI in orthographic rendering mode

Main difference is the way the pipelines are set up to make sure the UI is rendered on top.

Note: Due to a bug in the Cursor Component (issue 77) the target is not selected correctly.

[Copilot]

Pull Request Overview

Adds a new example demonstrating React UI integration with orthographic rendering mode. The example shows how to properly configure pipelines to ensure UI elements render correctly on top of other scene objects when using orthographic projection.

• Adds orthographic rendering example with modified depth pipeline configurations
• Includes both screen-space and world-space UI demonstrations
• Adds build script support for development with source maps and watch mode

Reviewed Changes

Copilot reviewed 7 out of 12 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/react-ui/package.json	Adds development build script with watch and source map support
examples/example_orthographic/tsconfig.json	TypeScript configuration for the new orthographic example
examples/example_orthographic/package.json	Package configuration and dependencies for orthographic example
examples/example_orthographic/js/react-ui.tsx	React UI component implementation demonstrating UI elements in orthographic mode
examples/example_orthographic/js/index.js	Auto-generated Wonderland Engine entry point for the example
examples/example_orthographic/cache/packagejson.hash	Package dependency hash file for caching
examples/example_orthographic/ReactUi_example_orthographic.wlp	Wonderland Engine project configuration with orthographic camera and UI pipeline settings

Files not reviewed (1)

• examples/example_orthographic/package-lock.json: Language not supported

[Squareys]

Might it make sense to just add the new project file to the other example? Then we wouldn't need to duplicate the static assets / images, nor the react-ui.tsx