Reproduce summary report used by Clackamas County Consortium (first pass - some features still pending ticket 1501)

* The "Center" reason should be added to the list of reasons in the application
* add ADA Eligibility to the customer profile
* Add service level to trips; add default service level to customers
* Add Per Agency fees
* Completed HTML report outline and styling
* Refactored #cctc_summary_report variables
* Filling out report values
* Completed controller tests for ReportsController#cctc_summary_report (except for 2 pending tests)