Fix deserialisation of responses

Add support for iOS devices

SendAsync: Add the ability to cancel the async task

Use a custom contract resolver in the CommandResposeFactory, to ensure that properties with private setters have their values set, too.

Add support for iOS devices. Create separate namespaces for the Chrome and iOS versions of the WebKit debugger protocol.

[RFC] Supporting multiple versions of the Chrome Debugger Protocol

Support type references in arrays
Support explicit type mappings

Command: Don't compare the Handlers property when checking whether two commands are equal - this property is currentl ignored.

- First logic to merge two protocols into a single one
- Support resolving types for command parameters

- Implement Equals, GetHashCode for the domain objects
- Add ProtocolMerge class, which for now detects which commands do not match

Use strongly-typed .NET classes to generate the protocol classes