Bug 321274 - Compound Custom Widget Focus

https://bugs.eclipse.org/bugs/show_bug.cgi?id=321274

Adds SWT.NO_FOCUS to ScrolledComposite, Form, FormHeading, TitleRegion, LayoutComposite

(cherry picked from commit 5512e759a2b8dbdddd3864ea2051d9e3058679de)
(cherry picked from commit 951d189876202fa088122c271dc127c21cf857ef)

Conflicts:
	bundles/org.eclipse.rap.rwt/src/org/eclipse/rap/rwt/lifecycle/ControlLCAUtil.java