Removing a lesioned area

Hi Francois,

As it is now, it works if the user only needs the "standard" tissues. In case of additional tissues (e.g. lesion), and, for example, absence of electrode or gel, 1) the new tissue should not be labeled >12 or the pipeline will crash and 2) if labeled between 10 and 12, it will be assigned as electrode or gel whatsoever.

Before checking the code in brainstorm, I hoped that it would rely on the final_tissues_LUT.txt. That would make the pipeline more flexible.

In the meantime, as a temporary solution I just changed the code myself by editing the label names in the brainstorm function.

Thank you,
Ramtin