spine 3.6~4.2 for axmol

Usage

1. Delete all files of folder axmol/extensions/spine
2. Switch to branch spinexx then copy spine-axmol/spine to axmol/extensions/spine

References

• axmol: https://github.com/axmolengine/axmol
• spine-runtimes: https://github.com/EsotericSoftware/spine-runtimes