4th release

[kampute]

• Updated the HttpRestClient class, removing constraint on the ResponseErrorType property for increased flexibility.
• Added a ResponseObject property to the HttpResponseException class to enhance error handling capabilities by including the response body in exceptions.
• Improved the XML content deserialization mechanism utilizing the DataContractSerializer by checking for the presence of the DataContract attribute to more accurately identifies model types supported for deserialization.
• Renamed SharedDisposalManager to SharedDisposal and introduced a ReferenceCount property to better manage and track shared disposable resources.
• Created the AsyncGuard class to provide a structured approach to asynchronous resource management, replacing the ad-hoc private class in HttpError401Handler.
• Performed code cleanup and enhanced XML documentation comments for better clarity and maintainability.