Add .dmg/.pkg mimetypes

Author: mythz

src/ServiceStack.Text/HttpUtils.cs

@@ -1392,6 +1392,8 @@ public static class MimeTypes
         public const string JavaScript = "text/javascript";
         public const string WebAssembly = "application/wasm";
         public const string Jar = "application/java-archive";
+        public const string Dmg = "application/x-apple-diskimage";
+        public const string Pkg = "application/x-newton-compatible-pkg";
 
         public const string FormUrlEncoded = "application/x-www-form-urlencoded";
         public const string MultiPartFormData = "multipart/form-data";
@@ -1517,6 +1519,8 @@ public static bool IsBinary(string contentType)
                 case Compressed:
                 case WebAssembly:
                 case Jar:
+                case Dmg:
+                case Pkg:
                     return true;
             }
 
@@ -1804,6 +1808,11 @@ public static string GetMimeType(string fileNameOrExt)
 
                 case "wasm":
                     return WebAssembly;
+                
+                case "dmg":
+                    return Dmg;
+                case "pkg":
+                    return Pkg;
 
                 default:
                     return "application/" + fileExt;