API accept the custom sheets as an input.

[Chirag2x]

Upload custom sheet to the server (and have the server distinguish between custom sheet and standard scantron sheet). On the custom sheet, the server can simply return - not yet supported.

Success Criteria:

• [x] Accepts Custom Sheets
• [x] No Error Pops up
• [x] Distinguishes between Custom and Scantron Sheets
• [x] Give message Not yet Supported
• [x] Test case must be included