Errors messages are displayed for:
- Minimum # of" operator must have Value equal to 1 or more.
- Minimum # of" operator must have Value equal to 1 or more.
- Minimum # of" operator must have Value equal to or less than the number of elective courses in the section.
- Section must have a Title.
This also adds operator_value and elective_flag to the default requirements section in order to allow the user to change the section to an elective section.