device generator has now the correct segment colors

next to the segment id, helps identifying the segment
for which the user should enter the parameters
viennamini segment setup is not colored as well

according to the segmnet id coloring
viennamini widget now stores/access solver parameters correctly
viennamini new UI implemented+linked solver,problem,temperature

now off to linking the contact and segment specific paramters
fixed segfault: moved combobox init before signals setup

ui problem combobox selection is now linked with simulator
removed obsolete tab hierarchy in the UI.

now the ViennaMini module just has one big 'widget' containing
all different paramter groups