Course designation indicating whether a student can take it multiple times for credit

Summary of outcomes for Data Standard 2.1

• Problem Addressed: An indication is needed of how many times a course may be taken for credit.
• High-level Reasoning: Some courses (such as band) may be taken for credit multiple times, while others may not.
• Changes Made: Added optional shared integer MaxCompletionsForCredit to Course entity

Original ticket description follows:

Some courses are set up so that a student can take them multiple times. An example might be Concert Band. The student is awarded credit each time he passes this course. Something like English 10 cannot be taken multiple times for credit. When the student takes it a second time, we must not wipe out the credit from the previous attempt. There needs to be a course designation indicating whether a student can take it multiple times for credit or not.