core-2.0.2

+ Update version.

+ Update version.

Feature/pixi 7 (#9)

 - Update to Pixi.7.
 - Replace TSLint with ESLint.
 - Use Rollup to bundle pixi renderer.
 - Update Github Action.

Feature/pixi 7 (#9)

 - Update to Pixi.7.
 - Replace TSLint with ESLint.
 - Use Rollup to bundle pixi renderer.
 - Update Github Action.

+ Update package version.