Added createPluginUI, removed createPlugin and createPluginAsync

CHANGELOG.md

src/apps/docking-viewer/index.html

src/apps/docking-viewer/index.ts

src/apps/viewer/embedded.html

src/apps/viewer/index.html

src/apps/viewer/index.ts

src/examples/alpha-orbitals/index.ts

src/examples/basic-wrapper/index.html

src/examples/basic-wrapper/index.ts

src/examples/lighting/index.html

src/examples/lighting/index.ts

src/examples/proteopedia-wrapper/index.html

src/examples/proteopedia-wrapper/index.ts

src/mol-plugin-ui/index.ts