Changelog for wai-saml2-0.5

Changelog for `wai-saml2`

Support GHC 9.6 (#53 by @mbg)
Fixed a bug in XML canonicalisation causing a digest mismatch on Okta when assertion attributes are present (special thanks to @hiroqn) (#51 by @fumieval)
Added authnRequestDestination field to AuthnRequest (#47 by @Philonous)

Split validateResponse into decodeResponse and validateSAMLResponse (#31 by @fumieval)
Exported NameID (formerly NameId), and renamed subjectNameId to subjectNameID
Support GHC 9.4 (#36 by @mbg)
Add new module Network.Wai.SAML2.Request with AuthnRequest generation for SP-initiated login flow (#19 by @fumieval)
Changed the saml2PrivateKey field to be optional and added saml2ConfigNoEncryption which takes a PublicKey only (#37 by @fumieval)
Added showUTCTime to Network.Wai.SAML2.XML
Added a new module Network.Wai.SAML2.NameIDFormat (#21 by @fumieval)
Added new field response to Result which contains the full, decoded SAML response (#33 by @Philonous)
Validate audience restrictions (#35 by @Philonous)
Handle status codes according to the SAML2 specification (#42) by @mbg

Improve parse error handling and make encryptedKeyData optional (#11 by @Philonous)
Add subjectNameId to Subject type (#13 by @kdxu)
Support the response format used by Okta, in which the EncryptedAssertion element is structured differently (#12 by @fumieval)

No changes.

Added parsing for RelayState from form data, as sent by e.g. Shibboleth when a target query string parameter is passed to the unsolicited SSO endpoint.