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

entries/core_war.md

@@ -0,0 +1,16 @@
+# Core War
+
+_Two or more battle programs (called "warriors") compete for control of a virtual computer._
+
+- Home: https://corewar.co.uk/, http://www.corewar.info/, http://vyznev.net/corewar/guide.html, https://sourceforge.net/projects/corewar/, https://corewar.co.uk/standards/icws94.htm, http://www.corewar.info/emulator.htm
+- Media: https://en.wikipedia.org/wiki/Core_War
+- State: mature
+- Keywords: simulation, programming
+- Code repository: https://gitlab.com/osgames/corewar.git (conversion from cvs), http://corewar.cvs.sourceforge.net (cvs)
+- Code language: C, Java
+- Code license: GPL-2.0 (C part), 2-clause BSD (Java part)
+
+See also [SDL pMars](https://corewar.co.uk/pihlaja/pmars-sdl/index.htm), [corewar.io](https://www.corewar.io/) with [sources on Github](https://github.com/gareththegeek/corewar)
+
+## Building
+