[frontend/backend] coded functionality into buttons for viewing Transactions based on filtered elements

[Front End] created all dropdowns with proper enumerations for Roles and Transaction Types; added function buttons

[dao backend] modified TransactionDAO.java to include SQL for roles; displayed all necessary transaction data to viewTransactionLogs.jsp; created necessary bean and loader to support roles

[security] allowed for admin and tester to access viewTransationLogs.jsp from their respective menu pages

Fixed error so that patients cannot create appointments in the past; fixed style changes; started EditApptPatientTest.java

cancelApptPatient now does not let user submit request to delete appointment more than once; general style fixes

Switched structure of View/Edit Appts to mimic HCP implementation; created editAppPatient.jsp and viewMyApptsPatient.jsp

Updated causeOfDeathTrendsReport jsp to pass field values (patient, gender, start date, and end date) to DAO class methods. Also modified trends report table by iterating through bean object to retrieve return values from DAO.

Updated cause-of-death trends report to return report results (dates are hardcoded since there is issue with converting string to date)