Add Ed25519 verify test.

Add Ed25519 certificate verify test using certificate from
draft-ietf-curdle-pkix-04 and custom generated root certificate.
Reviewed-by: NRich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3503)

test/certs/ee-ed25519.pem

+-----BEGIN CERTIFICATE-----
+MIIBLDCB36ADAgECAghWAUdKKo3DMDAFBgMrZXAwGTEXMBUGA1UEAwwOSUVURiBUZX
+N0IERlbW8wHhcNMTYwODAxMTIxOTI0WhcNNDAxMjMxMjM1OTU5WjAZMRcwFQYDVQQD
+DA5JRVRGIFRlc3QgRGVtbzAqMAUGAytlbgMhAIUg8AmJMKdUdIt93LQ+91oNvzoNJj
+ga9OukqY6qm05qo0UwQzAPBgNVHRMBAf8EBTADAQEAMA4GA1UdDwEBAAQEAwIDCDAg
+BgNVHQ4BAQAEFgQUmx9e7e0EM4Xk97xiPFl1uQvIuzswBQYDK2VwA0EAryMB/t3J5v
+/BzKc9dNZIpDmAgs3babFOTQbs+BolzlDUwsPrdGxO3YNGhW7Ibz3OGhhlxXrCe1Cg
+w1AH9efZBw==
+-----END CERTIFICATE-----

test/certs/root-ed25519.pem

+-----BEGIN CERTIFICATE-----
+MIIBODCB66ADAgECAgkAhPEIPRzjLZUwBQYDK2VwMBkxFzAVBgNVBAMMDklFVEYg
+VGVzdCBEZW1vMB4XDTE3MDQxOTIxMzYzOVoXDTQxMDIxMjIxMzYzOVowGTEXMBUG
+A1UEAwwOSUVURiBUZXN0IERlbW8wKjAFBgMrZXADIQAZv0QJaYTN/oVBusFn3DuW
+yFCGqjC2tssMXDitcDFm4aNQME4wHQYDVR0OBBYEFKKMwfhuWWDT4DrnXJYsl6jU
+SCk8MB8GA1UdIwQYMBaAFKKMwfhuWWDT4DrnXJYsl6jUSCk8MAwGA1UdEwQFMAMB
+Af8wBQYDK2VwA0EAa6iEoQZBWB1MhCzASv5HuFM7fR5Nz2/KM7GxYjQWsfvK2Ds1
+jaPSG7Lx4uywIndMafp5CoPoFr6yLBkt+NZLAg==
+-----END CERTIFICATE-----

test/recipes/25-test_verify.t

@@ -26,7 +26,7 @@ sub verify {
     run(app([@args]));
 }
 
-plan tests => 125;
+plan tests => 126;
 
 # Canonical success
 ok(verify("ee-cert", "sslserver", ["root-cert"], ["ca-cert"]),
@@ -340,3 +340,7 @@ ok(!verify("ee-pss-sha1-cert", "sslserver", ["root-cert"], ["ca-cert"], "-auth_l
 
 ok(verify("ee-pss-sha256-cert", "sslserver", ["root-cert"], ["ca-cert"], "-auth_level", "2"),
     "PSS signature using SHA256 and auth level 2");
+
+# ED25519 certificate from draft-ietf-curdle-pkix-04
+ok(verify("ee-ed25519", "sslserver", ["root-ed25519"], []),
+   "ED25519 signature");