Moved xml generation for Saml2Subject to own extension.
- New extension for Saml2Subject, ToXElement() that generates xml.
- Saml2AssertionExtensions uses new extension instead of building xml itself.
Fixed tests for Saml2SubjectExtensions.ToXElement.
- Test for functionality of Saml2SubjectExtensions.ToXElement.
- Reduced subject testing in Saml2AssertionExtensionsTests to only test basic presence of subject.
Added ToXElement extension for Saml2Conditions.
- Changed Saml2AssertionExtensions.ToXElement to use new extension method.
- Added tests.
- Fixes #33.