Update to Pixi.JS 5.0 #4

Working on this in branch pixijs-v5.

Dependencies ready for 5.0?

pixi-filters: Works with PixiJS 5.0
pixi-particles: Works with PixiJS 5.0
pixi-projection: Works with PixiJS 5.0
pixi-ease: Works with PixiJS 5.0
pixi-viewport: Works with PixiJS 5.0
pixi-compressed-textures: Currently no support for PixiJS 5.0 (https://github.com/pixijs/pixi.js/projects/6#card-8408373) but planned for 5.1.1 (https://github.com/pixijs/pixi-compressed-textures/issues/22)

### Dependencies ready for 5.0? - pixi-filters: Works with PixiJS 5.0 - pixi-particles: Works with PixiJS 5.0 - pixi-projection: Works with PixiJS 5.0 - pixi-ease: Works with PixiJS 5.0 - pixi-viewport: Works with PixiJS 5.0 - pixi-compressed-textures: Currently no support for PixiJS 5.0 (https://github.com/pixijs/pixi.js/projects/6#card-8408373) but planned for 5.1.1 (https://github.com/pixijs/pixi-compressed-textures/issues/22)

pixi-compressed-textures v2.0.0 supports PixiJS 5.1.3, but:

pixi-compressed-textures runs with Google Chrome
pixi-compressed-textures runs with Safari but only with WebGL 1!!

Tests: https://gitea.iwm-tuebingen.de/skupke/PixiJSv5CompressedTextures.git

pixi-compressed-textures v2.0.0 supports PixiJS 5.1.3, but: - pixi-compressed-textures runs with Google Chrome - pixi-compressed-textures runs with Safari but only with WebGL 1!! Tests: https://gitea.iwm-tuebingen.de/skupke/PixiJSv5CompressedTextures.git

Use pixi-compressed-textures v1.1.8 for PixiJS 4.x.x

Implemented.

Labels Milestones

Update to Pixi.JS 5.0 #4

Dependencies ready for 5.0?