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

entries/hodoku.md

@@ -0,0 +1,15 @@
+# HoDoKu
+
+_Sudoku generator/solver/trainer/analyzer._
+
+- Home: http://hodoku.sourceforge.net/en/index.php, https://sourceforge.net/projects/hodoku/
+- State: mature, inactive since 2013
+- Download: https://sourceforge.net/projects/hodoku/files/
+- Platform: Windows, Linux
+- Keywords: puzzle
+- Code repository: https://gitlab.com/osgames/hodoku.git (import of svn), https://svn.code.sf.net/p/hodoku/code/HoDoKu/trunk (svn)
+- Code language: Java
+- Code license: GPL-3.0
+
+## Building
+