PhoneTypeAccess complies with #2

Crud methods return indication of success or error
Files that should have been in 4ef4ad08d57a8166c329d714b8fe7e7d33583736
PhoneNumberAccess complies with #2
Fixes #2. YahrtziehtAccess complies with #2

All current classes now return indication other than exception on
failure
Added class for integration

Implementation will come in the future