New App - AntGain 🐜🎉

This update adds AntGain to IGM.

📝 Update Instruction

Run commands and step process:

1. Run igm update - Update IGM tool to get the latest changes. If updating via IGM menu, reload IGM for changes to take effect.
2. Run igm install - Then select AntGain to configure and install.
3. Optional - If running proxies, igm proxy remove then igm proxy install and enable AntGain then install the proxy stack.