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

entries/devilutionx.md

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+# DevilutionX
+
+_Remake of Diablo._
+
+- Home: https://github.com/diasurgical/devilutionX, https://web.archive.org/web/20130602191141/http://iphone.keyvisuals.com/apps/doom-classic-for-iphone-source-code-available/
+- State: mature
+- Keywords: action, commercial content, engine recreation, inspired by Diablo, remake, requires original content (Diablo 1)
+- Code repository: https://github.com/diasurgical/devilutionX.git
+- Code language: C, C++
+- Code license: Unlicense
+
+Improved engine recreation for modern systems.
+
+## Building
+
+- Build system: CMake