[KFS-838] Got ICR Account lines to add to Account objects as a collection. Seems happy.
[KFSQA-838] Cleaned up some step stuff related to the new ICRA collection.
[KFSQA-838] Pulled NotesAndAttachmentsLineObject out of KFSDataObject and converted to a mixin to get the same functionality without the mess. Moved it to a more appropriate location. Revised the Account page object to handle read-only stuff more easily.