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

entries/shadowgrounds.md

@@ -0,0 +1,16 @@
+# Shadowgrounds
+
+_Remake of Shadowgrounds: Survivor._
+
+- Home: https://github.com/vayerx/shadowgrounds
+- State: beta, inactive since 2017
+- Keywords: remake, inspired by Shadowgrounds: Survivor, requires original content
+- Code repository: https://github.com/vayerx/shadowgrounds.git
+- Code language: C++
+- Code license: Custom-NC (see https://github.com/vayerx/shadowgrounds/blob/linux/LICENSE.txt)
+
+Content license?
+
+## Building
+
+- Build system: CMake