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

entries/first_strike.md

@@ -0,0 +1,14 @@
+# First Strike
+
+_Conquer the world thanks to military forces._
+
+- Home: https://sourceforge.net/projects/firststrikegame/
+- State: mature
+- Download: https://sourceforge.net/projects/firststrikegame/files/
+- Keywords: strategy
+- Code repository: https://gitlab.com/osgames/firststrike.git (mirror), https://svn.code.sf.net/p/firststrikegame/code/ (svn)
+- Code language: Java
+- Code license: MIT
+
+## Building
+