Add getters to OAuth2AuthorizedClientId

Author: ch4mpy

oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/OAuth2AuthorizedClientId.java

@@ -50,6 +50,14 @@ public OAuth2AuthorizedClientId(String clientRegistrationId, String principalNam
 		this.principalName = principalName;
 	}
 
+	public String getClientRegistrationId() {
+		return this.clientRegistrationId;
+	}
+
+	public String getPrincipalName() {
+		return this.principalName;
+	}
+
 	@Override
 	public boolean equals(Object obj) {
 		if (this == obj) {