[API] Change in lubrication correction functionality to not require the lattice model but use the dynamic viscosity directly

Added case-sensitivity mode
Added error line location in exprtk.hpp for error_t

Also added wrapper for Metis & ParMetis to prevent it from polluting the global name space

Not all timer names are gathered, a parallel set reduction is used instead

 function was apparently never used

second tutorial added
updated older tutorials
made tutorials also tests