* added fields and logic for adding quota in creation of product
* added section for selecting quota option
* logic for hiding quota selections when needed
* fixed logic for quota selection
* formatting, removed print statements
* styling
* tests for adding quotas in product form
* cleaned up
* added divs
* reworked to include translatable text, readable values for quota options
* quota_add_existing form assignment to str(q.pk)
* made changes for radio buttons, added in sliding animation
* moved string constants for quota options, changed quota options to RadioSelect from Select
