Merge pull request #78 from yumakhov/master

fix to use CustomIssuerTokenResolver

Author: Revsgaard

src/ITfoxtec.Identity.Saml2/Tokens/Saml2ResponseSecurityTokenHandler.cs

@@ -39,7 +39,8 @@ public static Saml2ResponseSecurityTokenHandler GetSaml2SecurityTokenHandler(Sam
                 CertificateValidator = configuration.CertificateValidator,
                 DetectReplayedTokens = configuration.DetectReplayedTokens,
                 Caches = configuration.Caches,
-                TokenReplayCacheExpirationPeriod = configuration.TokenReplayCacheExpirationPeriod
+                TokenReplayCacheExpirationPeriod = configuration.TokenReplayCacheExpirationPeriod,
+                IssuerTokenResolver = configuration.IssuerTokenResolver
             };
 
             handler.SamlSecurityTokenRequirement.NameClaimType = ClaimTypes.NameIdentifier;