- remove "Unique exported filenames" option (assets of the same name will always add a unique numeric identifier)

- add "Display all assets" option to support display all types assets and export the RAW file.(use .dat extension)

Unity Studio/AssetsFile.cs

@@ -182,6 +182,10 @@ namespace Unity_Studio
                 {
                     asset.TypeString = UnityClassID.Names[asset.Type2];
                 }
+                else
+                {
+                    asset.TypeString = "unknown";
+                }
 
                 asset.uniqueID = i.ToString(assetIDfmt);