* add a minimal uiview file with alias from selfdrive/ui
* make ui_debug executable
* minimize uiview.py; remove os and functions. the processes exit normally when ctrl+c'ing out of the loop
* violating E401 here, save 1 more line
* kill on exit
* forgot signal
* new record! 15 lines
* add comments and declare some common variables. don't need to redefine the messages every loop
old-commit-hash: 2e59349b2e
