Fixed diagram details

Some diagram details are added automatically by the tool and cannot be hidden.

If a collapsed subprocess, service or phase has a stop inside then its icon is decorated by a small stop icon in the right top corner.

If a collapsed subprocess, service or phase has an uncoupled parallel branch inside then its icon is decorated by a small sink icon in the right top corner. If both stop and sink branch is inside then only small stop icon is shown.

If a Risk Point property of a process step is set then a small 'Danger' traffic sign is shown on the right.

If a process step inside a subprocess is a destination of a Go to step from the higher level then the icon of this step is decorated by a small go to icon in the left bottom corner.