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

entries/a7xpg.md

@@ -0,0 +1,16 @@
+# A7Xpg
+
+_Arcade space flier._
+
+- Home: http://a7xpg.sourceforge.net/, http://www.asahi-net.or.jp/~cs8k-cyu/windows/a7xpg_e.html
+- State: beta, inactive since 2005
+- Download: https://sourceforge.net/projects/a7xpg/files/a7xpg/
+- Keywords: arcade
+- Code repository: (see home)
+- Code language: D
+- Code license: 2-clause BSD
+- Code dependencies: SDL, vorbis
+
+Developer: Kenta Cho
+
+## Building