renamed flag to marker

src/mol-geo/representation/index.ts

src/mol-geo/representation/structure/bond.ts

src/mol-geo/representation/structure/index.ts

src/mol-geo/representation/structure/point.ts

src/mol-geo/representation/structure/spacefill.ts

src/mol-geo/representation/structure/utils.ts

src/mol-geo/representation/volume/index.ts

src/mol-geo/representation/volume/surface.ts

src/mol-geo/util/marker-data.ts

src/mol-gl/_spec/renderer.spec.ts

src/mol-gl/renderable/schema.ts

src/mol-gl/renderer.ts

src/mol-gl/shader/chunks/apply-marker-color.glsl

src/mol-gl/shader/chunks/assign-color-varying.glsl

src/mol-gl/shader/chunks/assign-marker-varying.glsl

src/mol-gl/shader/chunks/assign-material-color.glsl

src/mol-gl/shader/chunks/common-frag-params.glsl

src/mol-gl/shader/chunks/common-vert-params.glsl

src/mol-gl/shader/mesh.frag

src/mol-gl/shader/mesh.vert