ROENROLL-1682 display alert when undergrad term exceeds credit limit

src/app/app.module.ts

src/app/core/models/course.ts

src/app/core/models/student-info.ts

...dit-overload-dialog/credit-overload-dialog.component.html

...redit-overload-dialog/credit-overload-dialog.component.ts

src/app/degree-planner/services/api.service.ts

src/app/degree-planner/services/constants.service.ts

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

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

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

src/app/shared/shared.module.ts

src/environments/environment.prod.ts

src/environments/environment.ts