Add new PK algorithm tags AEDH, AEDSA

Author: vanitasvitae

pg/src/main/java/org/bouncycastle/bcpg/PublicKeyAlgorithmTags.java

@@ -70,6 +70,14 @@ public interface PublicKeyAlgorithmTags
      * MUST NOT be used with v6 keys (use {@link #Ed25519}, {@link #Ed448} instead).
      */
     int EDDSA_LEGACY = 22;     // new name for old EDDSA tag.
+    /**
+     * Reserved tag for AEDH.
+     */
+    int AEDH = 23;             // Reserved
+    /**
+     * Reserved tag for AEDSA.
+     */
+    int AEDSA = 24;            // Reserved
     /**
      * X25519 encryption algorithm.
      * C-R compliant implementations MUST implement support for this.