Removed test for class AbstractModuleSettings as there is no equals method yet
added new class ExtendedHashCodeMethodTester to enable significance tests
new class for config hashCode() method tests
implemented hashCode() method test for class Account
implemented hashCode() method test for class Contact
added fields "primaryPublicKey" and "moduleSettings" to hashCode() method of class Contact as they were missing
implemented hashCode() method test for class DropServer
implemented hashCode() method test for class Identity
added field "primaryKeyPair" to hashCode() method of class Identity as it was missing
implemented hashCode() method test for class StorageServer
implemented hashCode() method test for class StorageVolume
added Accounts equivalent factory for testing purposes
implemented hashCode() method test for class Accounts
added Contacts equivalent factory for testing purposes
implemented hashCode() method test for class Contacts
added DropServers equivalent factory for testing purposes
implemented hashCode() method test for class DropServers
added Identities equivalent factory for testing purposes
implemented hashCode() method test for class Identities
added StorageServers equivalent factory for testing purposes