v0.5.0

• Updated the library to work with latest onnx and pytorch versions
• Added new operators
  • GreaterOrEqual #56
  • ReduceL2 #54
  • ReduceMax #34 #33
• Switch to GitHub actions for CI

Special thanks to the contributors!

• https://github.com/zhumakhan
• https://github.com/calvinmccarter-at-lightmatter
• https://github.com/quaternio