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

entries/friking_shark.md

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+# Friking Shark
+
+_Clone of Flying Shark._
+
+- Home: https://pyra-handheld.com/boards/threads/friking-shark.76715/, https://code.google.com/archive/p/friking-shark/
+- State: mature
+- Platform: Linux
+- Keywords: arcade, clone, commercial content, inspired by Flying Shark, scrolling, shooter
+- Code repository: https://github.com/ptitSeb/friking-shark.git
+- Code language: C++
+- Code license: GPL-3.0
+
+## Building
+
+- Build system: CMake