Add audit model. Pull in basic audit data.

src/app/dars/dars-view/dars-view.component.html

src/app/dars/dars-view/dars-view.component.scss

src/app/dars/dars-view/dars-view.component.ts

src/app/dars/models/audit.ts

src/app/dars/services/api.service.ts