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

entries/rpg_paper_maker.md

@@ -0,0 +1,18 @@
+# RPG Paper Maker
+
+_Game making engine._
+
+- Home: http://rpg-paper-maker.com/?i=1
+- State: mature
+- Platform: Windows, Linux, macOS
+- Keywords: game engine
+- Code repository: https://github.com/RPG-Paper-Maker/RPG-Paper-Maker.git
+- Code language: C++
+- Code license: ? (free for non-commercial use)
+- Code dependencies: Qt
+
+Check license, maybe remove?
+
+## Building
+
+- Build system: QMake