Always forward the Execute and State method to the form shell,
so if a form control is selected the Control Properites will
work correctly.
Otherwise we check whether there is any field next to the cursor.

Change-Id: I25055c17d887a2f2a716d8325f46825cc408179e
Reviewed-on: https://gerrit.libreoffice.org/67911
Tested-by: Jenkins
Reviewed-by: Tamás Zolnai <tamas.zolnai@collabora.com>