imports from libregamewiki and some cvs to git conversions

entries/nikwi.md

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+# Nikwi
+
+_2D platformer where the player's goal is to collect sweets and avoid the traps and enemies._
+
+- Home: https://web.archive.org/web/20100109033002/http://www.badsectoracula.com/games/nikwi/, https://packages.debian.org/search?keywords=nikwi
+- State: beta, inactive since 2012
+- Platform: Windows, Linux
+- Keywords: platform, open content
+- Code repository: (see debian)
+- Code language: C++
+- Code license: GPL-2.0
+- Assets license: GPL
+
+## Building
+
+- Build system: Make