v0.3.0

What's Changed

• docs: Added Documentation on gitbook
• fix: refactor channel accounts to fix general issues and removed opex class
• chore: Refactor libs to reduce js sdk depency
• feat: Ability to close channels
• chore: add eslint, prettier and refactor modules
• docs: Add docstrings to main classes exposed in the library
• chore: Update libraries after js-soroban-client merge
• feat: Main contract utils to upload, deploy and wrap contracts

Full Changelog: v0.2.0...v0.3.0