fixed 2d simulatioin results

ViennaMini device simulator can now perform different 'single bc value' simulations
-> now off to checking ranges
3d laplace simulation works
after a module finished its 'run' phase, the 'update' method
of all modules is called, when they reported 'ready'
electron/holes are visualized

if a DD simulatioin is conducted, the electrons and holes are transferred
to the renderer as well
-> automatic log viz is used
using tabs again: tab 1:setup, tab 2: solver
deactivated load/save buttons for now + renamned 'run' buttons

using more meaningful - module-specific 'run-button-names'
-> device generator: 'set device'
-> device simulator: 'run simulation'
more elaborate description of the viennamini module
removed material manager icon on top bar

there is currently no presentable impelmentation available.
ViennaMOS merely loads a materials.xml file and uses
it to populate a ViennaMaterials library, which is then
forwarded to each module, actually making use of it
hid VCR toolbar (the buttons where already hidden, but not the 'toolbar')
removed seperator 'right of' module manager button
the 'update' method of the non currently active modules are called

-> if a module has finished execution, it does not need to be updated.
only the other modules in the active list might require an update,
as due to the previous execuiton new data might be able which might be
required by the other modules
the problem combobox is now reset when a new device is loaded

also using 'Select' entry by default, further indiicating to the
user that he/she must select something, before hitting 'run simulaton'
the renderer now visualized the last visualized quantity

this really helps, if one conducts several single step visualization in a row
and wants to investigate the same quanttity immediatly after the simuation is finished
actived std cout streams redirect to 'output' window
device generator/viennamini tables' last columns are now stretched

horizontally, to prevent ugly horizontal gab to table border
quicksafe due to fire alarm