feat(QueryBuilder): adding new 'multiple scope' concept to criteria builder

Description

this introduces new functionality to the query builder component. now when you pass in a config with more than one set of fields, it will configure it as a 'multiple scoped' criteria builder. this updates the behavior to create scoped groups for each type of field, with a single tabbed group picker to select them.

note that the existing behavior is unchanged if you only have one set of fields in your config. see the demo for implementation examples.

we also ran across a situation where we would like to show the QueryBuilder's operator for the first row, so we decided to put this behind a flag so it can be user configurable. it's defaulted to the original behavior so it will only change if explicitly updated.

lastly we ran across a situation where we would like to be able to remove all rows from a criteria builder, so we decided to add a flag (canBeEmpty) to decide whether we can remove the final row, or keep it but just clear it out instead. previously the delete button was simply disabled if it was on the final row.

Verify that...

[ ] Any related demos were added and npm start and npm run build still works
[ ] New demos work in Safari, Chrome and Firefox
[ ] npm run lint passes
[ ] npm test passes and code coverage is increased
[ ] npm run build still works

Bullhorn Internal Developers

[ ] Run Novo Automation

bullhorn / novo-elements