Initial commit of all existing editor files

angular.json

package-lock.json

package.json

projects/editor/.browserslistrc

projects/editor/karma.conf.js

projects/editor/src/app/app.component.ts

projects/editor/src/app/app.module.ts

.../editor/src/app/components/toolbar/toolbar.component.html

...ts/editor/src/app/components/toolbar/toolbar.component.ts

...ew/page-view/canvas/canvas-element-component.directive.ts

...-view/canvas/canvas-element-components/audio.component.ts

...view/canvas/canvas-element-components/button.component.ts

...ew/canvas/canvas-element-components/checkbox.component.ts

...nt-components/compound-components/correction.component.ts

...ew/canvas/canvas-element-components/dropdown.component.ts

...-view/canvas/canvas-element-components/image.component.ts

...-view/canvas/canvas-element-components/label.component.ts

...canvas-element-components/radio-button-group.component.ts

.../canvas/canvas-element-components/text-field.component.ts

...-view/canvas/canvas-element-components/video.component.ts