Forms: Field builder

[kaylachumley]

The pattern of form fields within rows. This implementation uses a Patternfly table, and requires some minor custom styles coupled with other Patternfly components (Button & Flex mainly)

It would be helpful for us to establish this pattern more concretely in our design guidelines and make a common component that has these guidelines built-in so there is less wonder/discovery when our products require this feature in their forms.

related to issue #731

new CG addition - will need new name that provides more clarity and increases ease of finding it within the left nav