Add the ability to get_keyring_secret the public key from key pairs

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=162399452

java/google/registry/tools/params/KeyringKeyName.java

@@ -24,6 +24,7 @@ public enum KeyringKeyName {
   BRAINTREE_PRIVATE_KEY,
   BRDA_RECEIVER_PUBLIC_KEY,
   BRDA_SIGNING_KEY_PAIR,
+  BRDA_SIGNING_PUBLIC_KEY,
   ICANN_REPORTING_PASSWORD,
   JSON_CREDENTIAL,
   MARKSDB_DNL_LOGIN,
@@ -31,6 +32,7 @@ public enum KeyringKeyName {
   MARKSDB_SMDRL_LOGIN,
   RDE_RECEIVER_PUBLIC_KEY,
   RDE_SIGNING_KEY_PAIR,
+  RDE_SIGNING_PUBLIC_KEY,
   RDE_SSH_CLIENT_PRIVATE_KEY,
   RDE_SSH_CLIENT_PUBLIC_KEY,
   RDE_STAGING_KEY_PAIR,