renamed games folder to entries folder (also contained frameworks, libraries, ...) and added to the backlog

entries/openspades.md

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+# OpenSpades
+
+_Remake of Ace of Spades._
+
+- Home: http://openspades.yvt.jp/, https://sites.google.com/a/yvt.jp/openspades/
+- Media: https://en.wikipedia.org/wiki/Ace_of_Spades_(video_game)
+- State: beta
+- Download: https://github.com/yvt/openspades/releases
+- Platform: Windows, macOS
+- Keywords: remake, first-person, inspired by Ace of Spades, sandbox, shooter
+- Code repository: https://github.com/yvt/openspades.git
+- Code language: C, C++, AngelScript
+- Code license: GPL-3.0
+
+## Building
+
+- Build system: CMake