Feedback enhancements - more feedback options added

[sei-jperrino]

Backend part of the feedback expansion. Allows questions more flexibility in a few ways:

• Questions can now be single-select multiple choice by using selectOne as the question type in the feedback yaml file
  • Can be turned into a dropdown by adding display: dropdown under the question; otherwise uses radio buttons
• Questions can now be multi-select multiple choice by using selectMany as the question type in the feedback yaml file
• Text box can be added to a single-select or multi-select question by adding specify under the question, then providing a key and a prompt
  • key determines what answer option in a question has the text box (maximum one text box is allowed per question)
  • prompt is the guidance text to help a user give an answer in the text box (can also be left empty)

Example of a single-select dropdown:

- id: q1
  prompt: Best captain?
  type: selectOne
  display: dropdown
  options:
    - Kirk
    - Picard
    - Sisko
    - Janeway
    - Archer

Example of a multi-select with a text box on the "Other" option:

- id: q2
  prompt: What board games do you like?
  type: selectMany
  options:
    - Monopoly
    - Sorry
    - Clue
    - Mouse Trap
    - Settlers of Catan
    - Other
  specify:
    key: Other
    prompt: Please enter a board game for 2+ players ages 8 and up.

[sei-mkaar]

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