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

entries/the_battle_for_wesnoth.md

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+# The Battle for Wesnoth
+
+_The Battle for Wesnoth is an open source, turn-based strategy game with a high fantasy theme._
+
+- Home: https://www.wesnoth.org/, https://sourceforge.net/projects/wesnoth/
+- Media: https://en.wikipedia.org/wiki/The_Battle_for_Wesnoth
+- State: mature
+- Download: http://www.wesnoth.org/#download
+- Keywords: strategy, multiplayer, turn-based
+- Code repository: https://github.com/wesnoth/wesnoth.git
+- Code language: C, C++, Java, Python, Lua
+- Code license: GPL-2.0
+
+## Building
+
+- Build system: CMake
+