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

entries/doom64ex.md

@@ -0,0 +1,17 @@
+# Doom64EX
+
+_Remake of Doom 64._
+
+- Home: https://doom64ex.wordpress.com/
+- State: mature
+- Download: https://doom64ex.wordpress.com/downloads/
+- Platform: Windows, macOS
+- Keywords: action, commercial content, inspired by Doom 64, original content required, remake
+- Code repository: https://github.com/svkaiser/Doom64EX.git
+- Code language: C, C++
+- Code license: GPL-2.0
+- Code dependencies: SDL2
+
+## Building
+
+- Build system: CMake