Made methods in PersonFacadeDB. Updated Adapter

- addPersonFromGson(String json), addRoleSchool(String josh, long id),
delete(long id),

- changed the RoleSchoolAdapter, so when et serializes a RoleSchool
into Json, “roleName” comes last in the format.

- Modified AssistentTeacher, to set its roleName to “AssistentTeacher”
instead of “Assistant Teacher”.

- Next step. Test all methods in PersonFacadeDB.

commit: Christopher 