Realese Version 0.2,2

💎 NEW FEATURE 💎

• Use QueryMap for better query parameter management
• Define constants for:
  • tr_id
  • exchange code
  • api path
  • query param key

🐛 FIX 🐛

• Fix issue where access token is set to Bearer null when it is missing from the yml file
• Resolve issue where personal API key is included in the distribution files:
  • Revoke the exposed API key
  • Modify the build script to exclude the file containing the API key

✏️ ETC ✏️

• Add JavaDoc comments to some classes
• Code formatting improvements