Add signingName to AwsSigningAlgorithm class

Author: lauzadis

runtime/auth/aws-signing-common/common/src/aws/smithy/kotlin/runtime/auth/awssigning/AwsSigningConfig.kt

@@ -23,7 +23,16 @@ public enum class AwsSigningAlgorithm {
     /**
      * AWS Signature Version 4 Asymmetric
      */
-    SIGV4_ASYMMETRIC,
+    SIGV4_ASYMMETRIC;
+
+    /**
+     * The name of this algorithm to use when signing requests.
+     */
+    public val signingName: String
+        get() = when (this) {
+            SIGV4 -> "AWS4-HMAC-SHA256"
+            SIGV4_ASYMMETRIC -> "AWS4-ECDSA-P256-SHA256"
+        }
 }
 
 /**

runtime/auth/aws-signing-default/common/src/aws/smithy/kotlin/runtime/auth/awssigning/BaseSigV4SignatureCalculator.kt

@@ -61,12 +61,6 @@ internal abstract class BaseSigV4SignatureCalculator(
         }
 }
 
-internal val AwsSigningAlgorithm.signingName: String
-    get() = when (this) {
-        AwsSigningAlgorithm.SIGV4 -> "AWS4-HMAC-SHA256"
-        AwsSigningAlgorithm.SIGV4_ASYMMETRIC -> "AWS4-ECDSA-P256-SHA256"
-    }
-
 private const val HEADER_TIMESTAMP_TYPE: Byte = 8
 
 /**