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

entries/mage-matthias_advanced_game_engine.md

@@ -0,0 +1,16 @@
+# MAGE - Matthias Advanced Game Engine
+
+_Game and rendering engine._
+
+- Home: https://github.com/matt77hias/MAGE, https://matt77hias.github.io/MAGE-Doc/MAGE-Doc/html/index.html
+- State: beta
+- Platform: Windows
+- Keywords: game engine
+- Code repository: https://github.com/matt77hias/MAGE.git
+- Code language: C++
+- Code license: GPL-3.0
+
+## Building
+
+- Build system: VisualStudio
+