camera spin animation

src/examples/basic-wrapper/index.ts

src/examples/proteopedia-wrapper/index.ts

src/extensions/mp4-export/encoder.ts

src/mol-plugin-state/animation/built-in/assembly-unwind.ts

src/mol-plugin-state/animation/built-in/camera-spin.ts

src/mol-plugin-state/animation/built-in/explode-units.ts

src/mol-plugin-state/animation/built-in/model-index.ts

...ol-plugin-state/animation/built-in/state-interpolation.ts

src/mol-plugin/animation-loop.ts

src/mol-plugin/index.ts