GitLab

- Updates icons, licenses, and copyright

- Post processor (in beta; there are many things that need to be fixed and
  improved)

- Integrates gaze estimate into the gaze estimation pipeline

- Already adding Eigen as it will be necessary when we merge Grip and the
  eye model

Webkit style (https://webkit.org/code-style-guidelines/)

Dear future me:

I'm sorry. Get ready for all those conflicts if you ever merge one of your old
branches. Since a lot of the code was being refactored at this time, they were
probably going to happen anyway.

Look on the bright side: Now everything is set to a single style.
Stay with it this time :-)

Moving from C to C++ null pointer style

libuvc: 69e45682220ff93abc6d675acfaa8fc6de8f5fca

uvcengine: fce1f275eb53cc87725f7232944813bc36da75cf