added lookup table, extra logging, revocation check update

Author: joevanwanzeeleKF

hashicorp-vault-cagateway/APIProxy/CertResponse.cs

@@ -16,10 +16,10 @@ public class CertResponse
         public string Certificate { get; set; }
 
         [JsonPropertyName("revocation_time_rfc3339")]
-        public DateTime? RevocationTime { get; set; }
+        public string RevocationTime { get; set; }
 
         [JsonPropertyName("revocation_time")]
-        public int RevocationTimestamp { get; set; }
+        public int? RevocationTimestamp { get; set; }
 
         [JsonPropertyName("issuer_id")]
         public string IssuerId { get; set; }