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

entries/performous.md

@@ -0,0 +1,16 @@
+# Performous
+
+_Clone of Dance Dance Revolution, Guitar Hero, SingStar._
+
+- Home: http://performous.org/
+- State: mature
+- Download: http://performous.org/download, https://github.com/performous/performous/releases
+- Platform: Windows, Linux, macOS
+- Keywords: music, clone, dancing, inspired by Dance Dance Revolution + Guitar Hero + SingStar, karaoke
+- Code repository: https://github.com/performous/performous.git
+- Code language: C, C++
+- Code license: GPL-2.0
+
+## Building
+
+- Build system: CMake