Add support for the FSMinimize macro in the model file.
It should be used like this:
LowScaleInput={
   FSMinimize[{vd,vu}, (SM[MZ] - Pole[M[VZ]])^2
                        + (SM[MH] - Pole[M[hh[1]]])^2]
};
Proof that a static function will work instead of a global function.
Advantage: A static function can be defined *locally* in a struct.
This makes code generation much easyer.
Add uncertainties for MZ and MH
Use uncertainty from ew_input.hpp module