User Interface Option dialog: introduce the AutoTile option

Implemented several options for the volumetric cursor behavior:  {Regular, Multiprojection Synchronize on Click (=Mango), Multiprojection Synchronize}

"T1-mapping using inversion recovery" parametric model:  combine two models into a single one with an option for {REAL,MODULUS} calculation.
Implemented an automatic subtest for the REAL case.