Components: Implemented select boxes and tags components to support multi-select & free response list fields

[natalialuzuriaga]

Problem

Currently, the form only supports text fields and single select fields. To collect information for fields like platforms, categories, etc. we need to implement more components.

Solution

This PR implements multi-select and free response list components. Now the form can create the following components:

• Select Boxes
• Tags

Result

Users can generate forms using json schemas that have fields with `type: array'.

When users fill out the form and click submit, the code.json is generated and downloaded onto their machine.

Test Plan

1. Start up a HTTP server using python: python3 -m http.server 8000
2. Click on form.html
3. Here is the form! Right click -> Inspect to open dev tools
4. Fill out the form
5. Click submit and downloads code.json. File contents should match what was submitted in the form!

Will create unit tests in a separate PR after OSAB

[IsaacMilarky]

LGTM