wip: refactoring param definition

src/apps/canvas/component/representation.tsx

src/mol-app/component/parameter/boolean.tsx

src/mol-app/component/parameter/multi-select.tsx

src/mol-app/component/parameter/number.tsx

src/mol-app/component/parameter/range.tsx

src/mol-app/component/parameter/select.tsx

src/mol-app/component/parameter/text.tsx

src/mol-app/component/parameters.tsx

src/mol-geo/geometry/direct-volume/direct-volume.ts

src/mol-geo/geometry/geometry.ts

src/mol-geo/geometry/lines/lines.ts

src/mol-geo/geometry/mesh/mesh.ts

src/mol-geo/geometry/points/points.ts

src/mol-model/structure/structure/unit/gaussian-density.ts

src/mol-repr/index.ts

src/mol-repr/shape/index.ts

src/mol-repr/structure/complex-visual.ts

src/mol-repr/structure/index.ts

src/mol-repr/structure/representation/backbone.ts

src/mol-repr/structure/representation/ball-and-stick.ts