wip mol-plugin managers

src/mol-plugin-state/actions/structure.ts

src/mol-plugin-state/builder/representation.ts

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

src/mol-plugin-state/builder/structure/representation.ts

src/mol-plugin-state/helpers/structure-selection-query.ts

src/mol-plugin-state/manager/structure/component.ts

src/mol-plugin-state/manager/structure/components.ts

src/mol-plugin-state/manager/structure/hierarchy-state.ts

src/mol-plugin-state/manager/structure/hierarchy.ts

src/mol-plugin-ui/controls/common.tsx

src/mol-plugin-ui/structure/components.tsx

src/mol-plugin-ui/structure/selection.tsx

...dynamic/selection/structure-representation-interaction.ts

src/mol-plugin/context.ts