What's Changed

• Remove SafetyMarginData from fwd.h by @rjoomen in https://github.com/tesseract-robotics/trajopt/pull/461
• Make sure serialized objects have friend struct tesseract_common::Serialization by @Levi-Armstrong in https://github.com/tesseract-robotics/trajopt/pull/462
• Add missing SYSTEM to target include in vhacd by @Levi-Armstrong in https://github.com/tesseract-robotics/trajopt/pull/463

Full Changelog: https://github.com/tesseract-robotics/trajopt/compare/0.30.0...0.31.0