imports from libregamewiki, conversions cvs to git, correcting keywords and code dependencies

entries/project_starfighter.md

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+# Project: Starfighter
+
+_2D shoot'em up game._
+
+- Home: https://pr-starfighter.github.io, http://savannah.nongnu.org/projects/starfighter
+- State: mature
+- Download: https://pr-starfighter.github.io/download.html, https://github.com/pr-starfighter/starfighter/releases
+- Platform: Windows, Linux
+- Keywords: arcade, open content, shootem
+- Code repository: https://github.com/pr-starfighter/starfighter.git, https://git.savannah.nongnu.org/git/starfighter.git (+), http://cvs.savannah.nongnu.org:/web/starfighter (cvs)
+- Code language: C
+- Code license: GPL-3.0
+- Code dependencies: SDL
+- Assets license: various
+
+Developer: Stephen Sweeney and Richard Sweeney of Parallel Realities
+
+## Building