chiark.greenend.org.uk/halibut

[and-ri]

closed #643

[what-the-diff]

PR Summary

• Added a new file
  A new file was introduced in the project.
• Updated Halibut download URL
  The URL for downloading Halibut has been modified to a new location.
• Changed version matching
  Versions and regex patterns have been updated for better package versioning.
• Added dependencies and build tools
  Added dependencies on CMake, Make, c99, and gx's cc wrapper, which will be used by default for packages utilizing CMake or Makefiles.
• Switched to CMake
  The build script now uses CMake instead of the previous autotools method, reflecting a recent change in the project's build system.