Add Hetzner and DigitalOcean regions

This PR adds the known regions from DO and Hetzner to the config output from S3Config

Duplicati/Library/Backend/S3/S3Backend.cs

@@ -149,6 +149,23 @@ namespace Duplicati.Library.Backend
             { "EU", "eu-west-1" }
         };
 
+        public static readonly Dictionary<string, string?> DIGITALOCEAN_REGIONS = new Dictionary<string, string?>(StringComparer.OrdinalIgnoreCase)
+        {
+            { "New York (nyc3)", "nyc3" },
+            { "Amsterdam (ams3)", "ams3" },
+            { "Singapore (sgp1)", "sgp1" },
+            { "Frankfurt (fra1)", "fra1" },
+            { "Sydney (syd1)", "syd1" }
+        };
+
+        public static readonly Dictionary<string, string?> HETZNER_REGIONS = new Dictionary<string, string?>(StringComparer.OrdinalIgnoreCase)
+        {
+            { "Falkenstein (fsn1)", "fsn1" },
+            { "Nuremberg (nbg1)", "nbg1" },
+            { "Helsinki (hel1)", "hel1" },
+            { "Ashburn, VA (ash)", "ash" }
+        };
+
         public static readonly Dictionary<string, string?> DEFAULT_S3_LOCATION_BASED_HOSTS;
 
         public static readonly Dictionary<string, string?> KNOWN_S3_STORAGE_CLASSES;

Duplicati/Library/Backend/S3/S3Config.cs

@@ -34,7 +34,9 @@ namespace Duplicati.Library.Backend
             Providers,
             Regions,
             RegionHosts,
-            StorageClasses
+            StorageClasses,
+            DigitalOceanRegions,
+            HetznerRegions,
         }
 
         public S3Config()
@@ -68,6 +70,8 @@ namespace Duplicati.Library.Backend
                 { ConfigType.Regions.ToString(), S3.KNOWN_S3_LOCATIONS.ToDictionary((x) => x.Key, (y) => y.Value) },
                 { ConfigType.RegionHosts.ToString(), S3.DEFAULT_S3_LOCATION_BASED_HOSTS.ToDictionary((x) => x.Key, (y) => y.Value) },
                 { ConfigType.StorageClasses.ToString(), S3.KNOWN_S3_STORAGE_CLASSES.ToDictionary((x) => x.Key, (y) => y.Value) },
+                { ConfigType.DigitalOceanRegions.ToString(), S3.DIGITALOCEAN_REGIONS.ToDictionary((x) => x.Key, (y) => y.Value) },
+                { ConfigType.HetznerRegions.ToString(), S3.HETZNER_REGIONS.ToDictionary((x) => x.Key, (y) => y.Value) },
             };
 
         #endregion