Missing tutorials

[malihass]

It would be useful to add tutorials that describe the following cases just like the bubble column tutorial

• loop reactor mixing (would show the block rectangular meshing)
• airlift reactor (would show the internal wall addition)
• side sparger (Would show how to set the block cylindrical meshing boundaries)
• stirred tank reactor (Would show how to add impeller, baffles and how to use MRF)
• Disengagement case
• Post processing scripts for all the experimental cases
• BDO foam

It would be useful to start adding tutorial for experimental cases

• Laakkonen case