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

entries/crack_attack.md

@@ -0,0 +1,18 @@
+# Crack Attack!
+
+_Remake of Tetris Attack._
+
+- Home: https://www.nongnu.org/crack-attack/
+- State: mature, inactive since 2005
+- Download: https://www.nongnu.org/crack-attack/#releases
+- Platform: Windows, Linux
+- Keywords: puzzle, inspired by Tetris Attack, remake
+- Code repository: https://savannah.nongnu.org/cvs/?group=crack-attack (cvs)
+- Code language: C++
+- Code license: GPL-2.0
+
+networking support
+
+## Building
+
+- Build system: Autoconf