Wizards: Improve the .gitignore template a bit

Fixes: QTCREATORBUG-31528
Change-Id: I9bb18ce773f0c4f9b106561f3afed85a99bd62d1
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>
Reviewed-by: André Hartmann <aha_1980@gmx.de>

share/qtcreator/templates/wizards/projects/git.ignore

@@ -34,10 +34,10 @@ Thumbs.db
 *.rc
 /.qmake.cache
 /.qmake.stash
-/build
 
 # qtcreator generated files
 *.pro.user*
+*.qbs.user*
 CMakeLists.txt.user*
 
 # xemacs temporary files
@@ -73,3 +73,10 @@ CMakeLists.txt.user*
 *.dll
 *.exe
 
+# Directories with generated files
+.moc/
+.obj/
+.pch/
+.rcc/
+.uic/
+/build*/