Show quiz to the Eve

[devukurup]

• [x] Build page 11(Eve view of quiz asking for first_name, last_name and email)
• [x] Build page 12(Eve view of quiz for submitting quiz answers)
• [x] Build page 13(quiz result page showing Eve's answer along with the correct answer for each question)
• [x] Eve can attempt for a quiz only once.
• Backend Design
• [x] Create a table attempts for storing attempt record for a Eve which has a quiz as reference.
• [x] Add one boolean column submitted in attempts table as well.
• [x] Create another table attempt_answers for storing answers. Each record of the table contains answer for single question of an attempt.
• [x] In table attempt_answers, combination of attempt_id and question_id will be unique.

Workflow for Eve:

• Eve enters a valid quiz slug.
• Slug is verified and redirects to attempts/new page.
• Eve enters its details and submits it to get the quiz details.
• Eve is created in the user's table as a standard user and an attempt record is created with submitted as false.
• Eve answers the questions and submitted is set true in the attempt table with all the answers in attempt_answers table. (End of Eve's flow)
• On step 3-4 if Eve refreshes the page Eve will be asked to enter the user details again.
• If we find the details of Eve with an unsubmitted(submitted: false) attempt then reuse the user object or else create a new user.
• Reports should contain only submitted attempts.