Revert ".gitignore : simplify + ignore private"

This reverts commit 0e5e58a1f87dd6f2feea6cc1366c681129b55358.

.gitignore

@@ -1,20 +1,74 @@
-.gradle/
+/.gradle/
-build/
+/.nb-gradle/private/
-gradle-app.setting
+/jme3-core/build/
-dist/
+/jme3-plugins/build/
-private/
+/jme3-desktop/build/
+/jme3-android-native/build/
+/jme3-android/build/
+/jme3-blender/build/
+/jme3-effects/build/
+/jme3-bullet/build/
+/jme3-terrain/build/
+/jme3-bullet-native/build/
+/jme3-jogg/build/
+/jme3-jbullet/build/
+/jme3-lwjgl/build/
+/jme3-networking/build/
+/jme3-niftygui/build/
+/jme3-testdata/build/
+/jme3-examples/build/
+/jme3-jogl/build/
+/dist/
 /jme3-bullet-native/bullet.zip
 /jme3-bullet-native/bullet-2.82-r2704/
+/sdk/build/
 /sdk/jme3-core-baselibs/release/
 /sdk/jme3-core-libraries/release/
 /sdk/jme3-project-baselibs/release/
 /sdk/jme3-project-libraries/release/
+/sdk/jme3-codepalette/build/
+/sdk/jme3-core-libraries/build/
+/sdk/jme3-code-check/build/
+/sdk/jme3-core-baselibs/build/
+/sdk/jme3-core-baselibs/nbproject/private/
+/sdk/jme3-documentation/build/
+/sdk/jme3-core-updatecenters/build/
+/sdk/jme3-project-testdata/build/
+/sdk/jme3-project-libraries/build/
+/sdk/jme3-project-baselibs/build/
+/sdk/jme3-templates/build/
+/sdk/jme3-texture-editor/build/
+/sdk/jme3-tests-template/build/
+/sdk/jme3-upgrader/build/
+/sdk/jme3-core/build/
+/sdk/jme3-obfuscate/build/
+/sdk/jme3-gui/build/
+/sdk/jme3-cinematics/build/
+/sdk/jme3-terrain-editor/build/
+/sdk/jme3-lwjgl-applet/build/
+/sdk/jme3-blender/build/
+/sdk/jme3-navmesh-gen/build/
+/sdk/jme3-angelfont/build/
+/sdk/jme3-materialeditor/build/
+/sdk/jme3-android/build/
+/sdk/jme3-desktop-executables/build/
+/sdk/jme3-ogrexml/build/
+/sdk/jme3-ogretools/build/
+/sdk/jme3-scenecomposer/build/
+/sdk/jme3-assetpack-support/build/
+/sdk/jme3-model-importer/build/
+/sdk/jme3-wavefront/build/
+/sdk/jme3-vehicle-creator/build/
+/sdk/jme3-welcome-screen/build/
+/sdk/jme3-glsl-support/build/
 /netbeans/
 /sdk/jme3-tests-template/src/com/jme3/gde/templates/tests/JmeTestsProject.zip
 /sdk/jme3-tests-template/src/com/jme3/gde/templates/tests/JME3TestsAndroidProject.zip
 /sdk/jme3-project-testdata/release/
 /sdk/JME3TestsTemplateAndroid/src/jme3test/
 /sdk/JME3TestsTemplate/src/jme3test/
+/jme3-ios/build/
 /jme3-android-native/openal-soft/
 /jme3-android-native/OpenALSoft.zip
 /jme3-android-native/stb_image/
+/jme3-bullet-native-android/build/