Add departments column and values for PIs at Stanford University

Some is already in .gitignore, but some is not. We should check all examples.

Listing some improvements to the GUI functionality that contributors might be interested in collaborating on.

Simple

• Adding Volume actors from .npy files
• When adding cells, let users select if the want a Points or PointsDensity actor
• More optional arguments for CLI (e.g. shader, background color etc)

Intermediate

• general code clean up / UI improvments

Advanced

It would be good to use Cmake command add_subdirectory wherever possible and split CMakeLists file. Problem with this command - it's impossible to use use install command for target from subdirectory. It means that it can not be used for static libraries which we link with main one since they should be installed together.

But it's possible to use add_subdirectory command for dynamic libr