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

entries/sdl_asylum.md

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+# SDL Asylum
+
+_C port of the computer game Asylum, which was written by Andy Southgate in 1994 for the Acorn Archimedes and is now public domain._
+
+- Home: http://sdl-asylum.sourceforge.net/, https://sourceforge.net/projects/sdl-asylum/
+- State: mature, inactive since 2009 
+- Download: http://sdl-asylum.sourceforge.net/main.html#Download
+- Platform: Linux
+- Keywords: action, arcade, inspired by Asylum, remake
+- Code repository: https://gitlab.com/osgames/sdl-asylum.git (import of svn), https://svn.code.sf.net/p/sdl-asylum/code/ (svn)
+- Code language: C
+- Code license: GPL-3.0
+- Code dependencies: OpenGL, SDL
+- Assets license: Public domain
+
+[Successor of Asylum](http://asylum.acornarcade.com/) from 1994.
+
+Developer: Andy Southgate, Hugh Robinson
+
+## Building
+