[Grim Tools] Mod support

[Dammitt]

Grim Tools now supports Reign Of Terror mod!

Here’s the list of available tools:

• Grim Dawn Build Calculator (Reign Of Terror Mod)
• Grim Dawn World Map (Reign Of Terror Mod)
• Grim Dawn Item Database (Reign Of Terror Mod)
• Grim Dawn Monster Database (Reign Of Terror Mod)