build the Add/Edit form templates for default Supplement management in Category records

This just lays the foundation form elements and formatting. There is still javascript needed to clone and remove Supplement values. Also, there will need to be save routines written to process the arrays returned and store the data properly
Clean up Category CRUD layouts

Input of Supplement default key/value pairs requires a flexible form that allows more or less input fields to be included.

These changes make the complex field-pair blocks (or value-populated sets of pairs) from a single element so the views stay simple.

Also, javascript has be added to allow cloning or removal of pairs.