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

entries/sdlpop.md

@@ -0,0 +1,15 @@
+# SDLPoP
+
+_Remake of Prince of Persia._
+
+- Home: http://www.popot.org/get_the_games.php?game=SDLPoP
+- State: mature
+- Keywords: action, inspired by Prince of Persia, remake
+- Code repository: https://github.com/NagyD/SDLPoP.git
+- Code language: C
+- Code license: GPL-3.0
+- Code dependencies: SDL
+
+## Building
+
+- Build system: CMake