Added Chargeback Automation Pages

updated_chargeback_page

fixed the selects to use page.select_dropdown

made my if statements default to none and made the variables lowercase

Updated the Chargeback Page

Chargeback Test
Merge pull request #72 from jwadkins/chargeback

Chargeback Automation
Modify ManagementSystemsAdd to add additional controls, and additional methods for populating form from yaml data
Refactor management systems pages to separate files