add target_wrapper.* to Qt.gitignore

This file is autogenerated by qmake for run auto(unit) tests.
For Windows: target_wrapper.bat
For Unix: target_wrapper.sh

Qt.gitignore

@@ -27,6 +27,11 @@ ui_*.h
 Makefile*
 *build-*
 
+
+# Qt unit tests
+target_wrapper.*
+
+
 # QtCreator
 
 *.autosave