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

entries/chocolate_doom.md

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+# Chocolate Doom
+
+_Doom source port that accurately reproduces the experience of Doom as it was played in the 1990s._
+
+- Home: https://www.chocolate-doom.org/wiki/index.php/Chocolate_Doom, https://sourceforge.net/projects/chocolate-doom/
+- State: mature 
+- Download: https://www.chocolate-doom.org/wiki/index.php/Downloads, https://sourceforge.net/projects/chocolate-doom/files/
+- Platform: Windows, Linux, macOS
+- Keywords: action, inspired by Doom, remake, shooter
+- Code repository: https://github.com/chocolate-doom/chocolate-doom.git
+- Code language: C
+- Code license: GPL-2.0
+
+Supports a number of games and mods based on the Doom engine.
+
+License of assets?
+
+## Building
+
+- Build system: CMake