v2.0.0

This is the first stable release for the v2 line.

Diff

Changes from previous stable release:
v1.0.0...v2.0.0

Changes

Most notable changes coming with this release are:

• Improvements to the CI.
• A new fee action method based on a fixed amount. This change resulted in version bumping for:
  • Go packages from v1 to v2.
  • Proto files associated with actions from v1 to v2.
• Deprecation of Heighliner in favor of Docker for local image.
• Solidity smart contracts for the CCTP gateway contracts.
• Updates in the adapter and parser interfaces.
  • Use of a cross-chain packet interface.
• Fix to the denom used in the stats for IBC incoming transfers.