Merge branch 'master' into sec-struc

.vscode/tasks.json

docs/state/readme.md

docs/state/transforms.md

package-lock.json

package.json

src/apps/basic-wrapper/index.html

src/apps/basic-wrapper/index.ts

src/apps/state-docs/index.ts

src/apps/structure-info/volume.ts

src/mol-canvas3d/canvas3d.ts

src/mol-canvas3d/controls/trackball.ts

src/mol-io/common/file-handle.ts

src/mol-io/common/simple-buffer.ts

src/mol-io/common/typed-array.ts

src/mol-io/reader/ccp4/parser.ts

src/mol-io/reader/ccp4/schema.ts

src/mol-io/reader/dsn6/parser.ts

src/mol-io/reader/dsn6/schema.ts

src/mol-model-formats/volume/ccp4.ts

src/mol-model/volume/data.ts