Utils: Add a convenience function to fill clipboard and selection

Relieves the user code side from repeated code which then tends to
get forgotten.

Change-Id: I079f97a658b55f3c79111df1946b8d72863ce513
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/libs/utils/stringutils.h

@@ -122,4 +122,12 @@ QTCREATOR_UTILS_EXPORT QString wildcardToRegularExpression(const QString &origin
 
 QTCREATOR_UTILS_EXPORT QString languageNameFromLanguageCode(const QString &languageCode);
 
+
+#ifdef QT_WIDGETS_LIB
+
+// Feeds the global clipboard and, when present, the primary selection
+QTCREATOR_UTILS_EXPORT void setClipboardAndSelection(const QString &text);
+
+#endif
+
 } // namespace Utils