Add plugin-vana

[Bilirose]

Plugin Information
Plugin Name: plugin-vana
Repository: https://github.com/Bilirose/eliza/tree/develop/packages/plugin-vana
Current Maintainer: @Bilirose

Request Type
I would like to be a maintainer for this plugin, and want to merge.

Qualifications

• Created and developed the original plugin-vana for ElizaOS
• Transfer tokens from one address to another on Vana
• Actively maintaining the codebase

I am committed to:

• Maintaining and updating the plugin regularly
• Responding to issues and pull requests
• Following ElizaOS plugin development guidelines
• Collaborating with the community

Additional Notes
I have joined the Discord server to coordinate further steps and discussions.
Please let me know what additional information or steps are needed to proceed with the maintainer role.