added basic GDX project to this project

.gitignore

@@ -1,26 +1,127 @@
-# Compiled class file
+## Java
+
 *.class
-
-# Log file
-*.log
-
-# BlueJ files
-*.ctxt
-
-# Mobile Tools for Java (J2ME)
-.mtj.tmp/
-
-# Package Files #
-*.jar
 *.war
-*.nar
 *.ear
-*.zip
-*.tar.gz
-*.rar
-
-# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
 
-.idea/**
-netwerk-programming-eindopdracht.iml
+## Robovm
+/ios/robovm-build/
+
+## GWT
+/html/war/
+/html/gwt-unitCache/
+.apt_generated/
+.gwt/
+gwt-unitCache/
+www-test/
+.gwt-tmp/
+
+## Android Studio and Intellij and Android in general
+/android/libs/armeabi/
+/android/libs/armeabi-v7a/
+/android/libs/arm64-v8a/
+/android/libs/x86/
+/android/libs/x86_64/
+/android/gen/
+.idea/
+*.ipr
+*.iws
+*.iml
+/android/out/
+com_crashlytics_export_strings.xml
+
+## Eclipse
+
+.classpath
+.project
+.metadata/
+/android/bin/
+/core/bin/
+/desktop/bin/
+/html/bin/
+/ios/bin/
+/ios-moe/bin/
+*.tmp
+*.bak
+*.swp
+*~.nib
+.settings/
+.loadpath
+.externalToolBuilders/
+*.launch
+
+## NetBeans
+
+/nbproject/private/
+/android/nbproject/private/
+/core/nbproject/private/
+/desktop/nbproject/private/
+/html/nbproject/private/
+/ios/nbproject/private/
+/ios-moe/nbproject/private/
+
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+/ios-moe/build/
+
+/nbbuild/
+/android/nbbuild/
+/core/nbbuild/
+/desktop/nbbuild/
+/html/nbbuild/
+/ios/nbbuild/
+/ios-moe/nbbuild/
+
+/dist/
+/android/dist/
+/core/dist/
+/desktop/dist/
+/html/dist/
+/ios/dist/
+/ios-moe/dist/
+
+/nbdist/
+/android/nbdist/
+/core/nbdist/
+/desktop/nbdist/
+/html/nbdist/
+/ios/nbdist/
+/ios-moe/nbdist/
+
+nbactions.xml
+nb-configuration.xml
+
+## Gradle
+
+/local.properties
+.gradle/
+gradle-app.setting
+/build/
+/android/build/
+/core/build/
+/desktop/build/
+/html/build/
+/ios/build/
+/ios-moe/build/
+
+## OS Specific
+.DS_Store
+Thumbs.db
+
+## iOS
+/ios/xcode/*.xcodeproj/*
+!/ios/xcode/*.xcodeproj/xcshareddata
+!/ios/xcode/*.xcodeproj/project.pbxproj
+/ios/xcode/native/
+/ios/IOSLauncher.app
+/ios/IOSLauncher.app.dSYM
+
+/ios-moe/xcode/*.xcodeproj/*
+!/ios-moe/xcode/*.xcodeproj/xcshareddata
+!/ios-moe/xcode/*.xcodeproj/project.pbxproj
+/ios-moe/xcode/native/