Terrain Component for Editor

[Wagner]

I have moved these systems to a separate library, you can get acquainted with the approaches:

OptiPixel labriary

Introducing playcanvas-opti-pixel — a powerful library for optimizing graphics rendering in the PlayCanvas Engine. It is specifically designed to boost the performance of WebGL2 and WebGPU applications using advanced techniques such as occlusion queries, HZB, and efficient GPU buffer management. Key Features Occlusion Queries (WebGL2): Fast culling of invisible objects using occlusion queries, reducing GPU load and increasing FPS in complex scenes. HZB Construction (WebGL2 | WebGPU): Hier…