Create three dot menu for course items and add its functionality

src/app/degree-planner/degree-planner.component.html

src/app/degree-planner/degree-planner.component.ts

src/app/degree-planner/degree-planner.module.ts

...onfirm-dialog/remove-course-confirm-dialog.component.html

...onfirm-dialog/remove-course-confirm-dialog.component.scss

...irm-dialog/remove-course-confirm-dialog.component.spec.ts

...-confirm-dialog/remove-course-confirm-dialog.component.ts

...er/favorites-container/favorites-container.component.html

...nner/favorites-container/favorites-container.component.ts

...ree-planner/shared/course-item/course-item.component.html

...ree-planner/shared/course-item/course-item.component.scss

...egree-planner/shared/course-item/course-item.component.ts

...lanner/sidenav-menu-item/sidenav-menu-item.component.html

...-planner/sidenav-menu-item/sidenav-menu-item.component.ts

...gree-planner/term-container/term-container.component.html

...degree-planner/term-container/term-container.component.ts

src/app/shared/academic-year-range.pipe.ts

src/app/shared/shared.module.ts

src/assets/sass/general.scss