1. library/rich-text-editor: [NEW] Common component which configures a rich text editor.
2. dataset-editor.component.html & main-info.component.html: Use <rich-text-editor-component> to allow rich text in dataset and dmp description.
3. dataset-overview.component.html & dmp-overview.component.html: Show dataset and dmp description as innerHTML.
4. dataset.module.ts & dmp.module.ts: Imported RichTextEditorModule.
1. dataset-profile-editor-composite-field.component.ts & dataset-profile-editor-section.component.ts & dataset-profile-editor.component.ts: Initialize AngularEditorConfig.
2. dataset-profile-editor-composite-field.component.html & dataset-profile-editor-section.component.html & dataset-profile-editor.component.html: Use <angular-editor> in description.
3. multiple-auto-complete.component.html & dataset-profile-listing.component.html & form-section.component.html: Show description as html.
4. dataset-profile.module.ts: Imported HttpClientModule, AngularEditorModule (needed for <angular-editor>).
5. available-profiles.component.html: Show description as html, under the Dataset Template title, not as tooltip (matTooltip does not receive html).
6. available-profiles.component.ts: Added styleUrls: ['available-profiles.component.scss'].
7. available-profiles.component.scss: [NEW] Added css for class "list-option" to cut description if too long.
8. form-composite-title.component.html: Show description and extendedDescription as html | Add view more/less functionality to show/hide extendedDescription.
9. form-composite-title.component.ts: Added "public showExtendedDescription: boolean = false;" field.
10. form-composite-title.component.scss: Added css for "more" class, to make "view more/less" seem like link.
11. assets/i18n/: In language files added DATASET-EDITOR.QUESTION.EXTENDED-DESCRIPTION.VIEW-MORE (-LESS).
12. assets/styles.css: Added css for <angular-editor>, to be similar to the other text areas and forms.
