Merge pull request #583 from jpattle/model-index-carbon-color

CHANGELOG.md

src/mol-model-props/common/custom-model-property.ts

src/mol-model/structure/model/model.ts

src/mol-plugin-state/builder/structure/hierarchy-preset.ts

...ol-plugin/behavior/dynamic/custom-props/structure-info.ts

src/mol-theme/color.ts

src/mol-theme/color/element-symbol.ts

src/mol-theme/color/illustrative.ts

src/mol-theme/color/model-index.ts

src/mol-theme/color/trajectory-index.ts

src/mol-util/color/distinct.ts