Add .gitattributes and move .gitignore

.gitignore

@@ -1,26 +1,43 @@
-# Gradle
 .gradle
-build
+build/
+#!gradle/wrapper/gradle-wrapper.jar
+#!**/src/main/**/build/
+#!**/src/test/**/build/
 
-# VSC
-bin
-
-# IntelliJ
-*.iml
+### IntelliJ IDEA ###
 .idea
-out
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+out/
+#!**/src/main/**/out/
+#!**/src/test/**/out/
 
-# Eclipse
+### Eclipse ###
+.apt_generated
 .classpath
+.factorypath
 .project
+.settings
+.springBeans
+.sts4-cache
+bin/
+#!**/src/main/**/bin/
+#!**/src/test/**/bin/
 
-# Libraries
-*.so
-*.dylib
-*.dll
-*.jar
-*.class
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
 
+### VS Code ###
+.vscode/
+
+### Mac OS ###
 .DS_Store
-!Projekte/gradle/wrapper/gradle-wrapper.jar
-