PSpSynedra

Add support for SamSite cookie attribute

1

This pull request adds support for the SameSite cookie attribute to: - org.restlet.data.CookieSetting - org.restlet.engine.header.CookieSettingWriter - org.restlet.engine.header.CookieSettingReader It also adds tests for the added functionality via: - org.restlet.test.engine.header.CookieSettingReaderTestCase - org.restlet.test.engine.header.CookieSettingWriterTestCase...