MonoMac 0.0.0.0 System.Object keys for use with addresses.

A single instance stores a single address, with the dictionary keys and values holding different parts of the address:

`// Address from: http://en.wikipedia.org/wiki/Address_(geography)#United_States NSDictionary address = NSDictionary.FromObjectsAndKeys( new NSObject[]{ new NSString("455 Larkspur Dr."), new NSString("California Springs"), new NSString("CA"), new NSString("92926"), new NSString("USA"), new NSString("us"), }, new NSObject[]{ ABPersonAddressKey.Street, ABPersonAddressKey.City, ABPersonAddressKey.State, ABPersonAddressKey.Zip, ABPersonAddressKey.Country, ABPersonAddressKey.CountryCode, } ); ABMutableDictionaryMultiValue addresses = new ABMutableDictionaryMultiValue() { { address, ABLabel.Home }, }; ABPerson person = GetMeSomePerson(); person.SetAddresses(addresses);`
- Property
  0.0.0.0
  MonoMac.Foundation.NSString Represents the value associated with the constant kABPersonAddressCityKey A containing the key to use for the City portion of the address.
- Property
  0.0.0.0
  MonoMac.Foundation.NSString Represents the value associated with the constant kABPersonAddressCountryKey A containing the key to use for the Country portion of the address.
- Property
  0.0.0.0
  MonoMac.Foundation.NSString Represents the value associated with the constant kABPersonAddressCountryCodeKey A containing the key to use for the CountryCode portion of the address.

  See kABPersonAddresCountryCodeKey documentation for a list of supported values.

- Property
  0.0.0.0
  MonoMac.Foundation.NSString Represents the value associated with the constant kABPersonAddressStateKey A containing the key to use for the State portion of the address.
- Property
  0.0.0.0
  MonoMac.Foundation.NSString Represents the value associated with the constant kABPersonAddressStreetKey A containing the key to use for the Street portion of the address.
- Property
  0.0.0.0
  MonoMac.Foundation.NSString Represents the value associated with the constant kABPersonAddressZIPKey A containing the key to use for the Zip portion of the address.