Add Hunter Rumour History

[mutations-uim]

Adds Hunter Rumour History, a plugin for tracking completed Master Hunter Rumours.

Features:

• Tracks completed Hunter Rumours and catches/KC required for the rare part
• Supports dashing kebbit, moonlight antelope, herbiboar, and red chinchompa (more to come later)
• Displays recent completed rumours in a configurable overlay
• Saves rumour history locally to CSV
• Restores recent history after RuneLite restarts
• Does not send or upload player data

The plugin has been tested locally using the RuneLite development client.