v0.13.0

• Make model methods virtual (#121)
• More point extensions (#123)
  • Add Vector2 extensions so that it can be used instead of IntPoint
  • Add IntPointWithValue record
  • Add ChebyshevDistance(Point) and ChebyshevDistance(Vector2) (#124)
  • Support more chars in Move(char) methods

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Full Changelog: v0.12.0...v0.13.0