feat: add missing model identifiers

- Added additional identifiers for existing Models
  but included the date for consistency while maintaining
  backwards compatibility for those using the existing
  identifiers.
- Added missing identifiers for new versions of the
  Models
- Added identifiers for the models supporting the
  `latest` identifier
- All identifiers sourced from this doc:
  https://docs.anthropic.com/en/docs/about-claude/models

src/AnthropicClient/Models/AnthropicModels.cs

@@ -6,24 +6,84 @@ namespace AnthropicClient.Models;
 public static class AnthropicModels
 {
   /// <summary>
-  /// The Claude-3 Opus model.
+  /// The Claude 3 Opus model.
   /// </summary>
   public const string Claude3Opus = "claude-3-opus-20240229";
 
   /// <summary>
-  /// The Claude-3 Sonnet model.
+  /// The Claude 3 Opus model.
+  /// </summary>
+  public const string Claude3Opus20241022 = "claude-3-opus-20240229";
+
+  /// <summary>
+  /// The Claude 3 Opus model.
+  /// </summary>
+  public const string Claude3OpusLatest = "claude-3-opus-latest";
+
+  /// <summary>
+  /// The Claude 3 Sonnet model.
   /// </summary>
   public const string Claude3Sonnet = "claude-3-sonnet-20240229";
 
   /// <summary>
-  /// The Claude-3.5 Sonnet model.
+  /// The Claude 3 Sonnet model.
+  /// </summary>
+  public const string Claude3Sonnet20240229 = "claude-3-sonnet-20240229";
+
+  /// <summary>
+  /// The Claude 3.5 Sonnet model.
   /// </summary>
   public const string Claude35Sonnet = "claude-3-5-sonnet-20240620";
 
   /// <summary>
-  /// The Claude-3 Haiku model.
+  /// The Claude 3.5 Sonnet model.
+  /// </summary>
+  public const string Claude35Sonnet20240620 = "claude-3-5-sonnet-20240620";
+
+  /// <summary>
+  /// The Claude 3.5 Sonnet model.
+  /// </summary>
+  public const string Claude35Sonnet20241022 = "claude-3-5-sonnet-20241022";
+
+  /// <summary>
+  /// The Claude 3.5 Sonnet model.
+  /// </summary>
+  public const string Claude35SonnetLatest = "claude-3-5-sonnet-latest";
+
+  /// <summary>
+  /// The Claude 3 Haiku model.
   /// </summary>
   public const string Claude3Haiku = "claude-3-haiku-20240307";
 
-  internal static bool IsValidModel(string modelId) => modelId is Claude3Opus or Claude3Sonnet or Claude35Sonnet or Claude3Haiku;
+  /// <summary>
+  /// The Claude 3 Haiku model.
+  /// </summary>
+  public const string Claude3Haiku20240307 = "claude-3-haiku-20240307";
+
+  /// <summary>
+  /// The Claude 3.5 Haiku model.
+  /// </summary>
+  public const string Claude35Haiku20241022 = "claude-3-5-haiku-20241022";
+
+  /// <summary>
+  /// The Claude 3.5 Haiku model.
+  /// </summary>
+  public const string Claude35HaikuLatest = "claude-3-5-haiku-latest";
+
+  internal static bool IsValidModel(string modelId) => modelId is 
+    Claude3Opus or 
+    Claude3Opus20241022 or
+    Claude3OpusLatest or
+    
+    Claude3Sonnet or 
+    Claude3Sonnet20240229 or
+    Claude35Sonnet or 
+    Claude35Sonnet20240620 or
+    Claude35Sonnet20241022 or
+    Claude35SonnetLatest or
+    
+    Claude3Haiku or
+    Claude3Haiku20240307 or
+    Claude35Haiku20241022 or
+    Claude35HaikuLatest;
 }