v0.3.0

⚠️ This version has some breaking changes

📝 migration document

✨ New features ✨

• Make generator commands (grapi g ...) pluggable 🔌
  • Reference implementation: grapi-gen-command, grapi-gen-type
• Use gex internaly
  • Manage executable tools with tools.go
• Many bugs are fixed 🐛🐛🐛