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

entries/blacknova_traders.md

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+# BlackNova Traders
+
+_Web-based, multi-player space exploration game inspired by the popular BBS game of TradeWars._
+
+- Home: https://sourceforge.net/projects/blacknova/, https://blacknova.net/
+- State: beta, inactive since 2012
+- Download: https://sourceforge.net/projects/blacknova/files
+- Keywords: strategy
+- Code repository: https://gitlab.com/osgames/blacknova.git (backup of svn), https://svn.code.sf.net/p/blacknova/code/ (svn)
+- Code language: PHP, JavaScript
+- Code license: GPL-2.0
+
+Fork is [Red Nova Traders](https://sourceforge.net/projects/rednova/), inactive since 2006.
+
+See also https://github.com/myprohost/BlackNovaTrader, https://github.com/Kambyses/BlackNova-Traders
+
+## Building
+