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

entries/colobot_gold_edition.md

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+# Colobot: Gold Edition
+
+_Real-time strategy game, where you can program your units (bots) in a language called CBOT, which is similar to C++ and Java._
+
+- Home: https://colobot.info/
+- State: mature
+- Download: https://colobot.info/download-colobot-gold/
+- Keywords: strategy, inspired by Colobot, open content, real time, remake
+- Code repository: https://github.com/colobot/colobot.git
+- Code language: C++
+- Code license: GPL-3.0
+- Code dependencies: SDL2
+
+Updated version of the Colobot original source code.
+
+## Building
+
+- Build system: CMake