Support 3D transformations or arbitrary 4-point placement in container/as a filter supporting perspectives etc.

Examples:

* https://gameofbombs.github.io/pixi-bin/index.html?s=flip&f=cards.js&title=Cards
* https://github.com/pixijs/pixi-projection/blob/master/src/proj3d/sprites/Sprite3d.ts

Read the linked pixi-projection Sprite3d.ts and the example pages first; compare their 3D transformation and arbitrary four-point placement behavior with Korge's container or filter model. Done means supporting the requested perspective-capable transformations or placement, but the issue does not define a narrower acceptance test.

Written by the indexing model from the issue text.