[BUG] Status assignments should be treated as normal assignments after calculating late penalty

[gregbell26]

Description

This issue is kinda a combination bug/feature request as it doesn't break anything, but requires a lot of workarounds that will get more complicated as the script grows in complexity.

Issue

Currently, the way that status assignments are scored only allows one to be scored when scores are generated.

Solution

A solution would add the status assignments to the assginmentsToGrade data frame after special cases are processed in the Grade.grade module. Should create a new function called convertStatusAssignmentToNormalAssignment

Acceptance Criteria

• [x] Creates a new function to handle the conversion
• [x] Is a separate call after the other Grade.grade calls
• [x] Merges the new assignment grades with the existing grade map that is used for the current grade sheet.
• [x] Updates the assignmentsToGrade dataframe.

[gregbell26]

resolved in #30