Other Pāḷi and Sanskrit dictionaries are currently found in exporter/other_dictionaries

Refactor into its own GitHub repository which can be imported as a sub-module in the resources folder. Add missing dictionaries, and create downloadable releases from GitHub.

• Create new GitHub repository
• Import as sub-module
• Refactor folder structure
• Create GitHub action release pipeline
• Add Cone
• Link releases to docs website
• Delete Google Drive links