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

entries/simon_tathams_portable_puzzle_collection.md

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+# Simon Tatham's Portable Puzzle Collection
+
+_Collection of multi-platform single-player puzzle games._
+
+- Home: http://www.chiark.greenend.org.uk/~sgtatham/puzzles/, https://chris.boyle.name/projects/android-puzzles/, https://hewgill.com/puzzles/
+- State: mature
+- Platform: Windows, Linux, macOS, Android, iOS
+- Keywords: remake, open content, puzzle games collection
+- Code repository: https://git.tartarus.org/simon/puzzles.git, https://github.com/chrisboyle/sgtpuzzles.git (+), https://github.com/ghewgill/puzzles.git (+)
+- Code language: C
+- Code license: MIT
+- Code dependencies: GTK
+- Assets license: MIT
+
+Developer: Simon Tatham and others
+
+## Building