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

entries/blender_game_engine.md

@@ -0,0 +1,19 @@
+# Blender game engine
+
+_Included in Blender is a complete game engine, allowing you to create a fully featured 3d game right inside Blender._
+
+- Home: https://www.blender.org/features/game-creation/, https://docs.blender.org/manual/en/2.79/game_engine/index.html
+- Media: https://en.wikipedia.org/wiki/Blender_Game_Engine
+- State: mature
+- Download: https://www.blender.org/download/
+- Keywords: framework
+- Code repository: git://git.blender.org/blender.git (https://developer.blender.org/diffusion/)
+- Code language: C++
+- Code license: GPL-2.0
+
+Part of Blender.
+
+## Building
+
+- Build system: CMake
+- Build instructions: https://wiki.blender.org/index.php/Dev:Doc/Building_Blender