feat: jwtpp support EdDSA

Signed-off-by: Artur Troian <[email protected]>

Author: troian

views/website/libraries/21-C++.json

@@ -27,7 +27,8 @@
         "es512": true,
         "ps256": true,
         "ps384": true,
-        "ps512": true
+        "ps512": true,
+        "eddsa": true
       },
       "authorUrl": "https://github.com/troian",
       "authorName": "Artur Troian",