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

entries/escape_towards_the_unknown.md

@@ -0,0 +1,16 @@
+# Escape Towards The Unknown
+
+_Graphic adventure._
+
+- Home: https://ettu.sourceforge.io/, https://sourceforge.net/projects/ettu/
+- State: beta, inactive since 2016
+- Download: https://sourceforge.net/projects/ettu/files/
+- Platform: Windows, macOS
+- Keywords: adventure
+- Code repository: https://svn.code.sf.net/p/ettu/code/ (svn)
+- Code language: C
+- Code license: GPL-2.0
+- Code dependencies: SDL
+
+## Building
+