yes you need this xflush before sleeping into select...

- array of plots
- deal with colors

- update X events management
- lock to protect data while plotting (may become a problem in the future)
- better naming of dimensions

this commit should be cut in small pieces
bah

- minor fix

- add on/off command line options

only works for 5MHz (7680 samples per TTI), one transport block
(basic FDD thing)