Visualize flatbuffers logs

[ahundt]

We have flatbuffers logs :+1: , but we need to visualize them!

1. Write a simple fbs to csv program so we can view time plots of:
   • all time stamps in a TimeEvent from both the atracsys and kuka
   • all joint angles and kuka end effector positions, Atracys object positions
   • differences between these values at a given time stamp

I think https://github.com/facontidavide/PlotJuggler might be a good time series viewing tool, so I created two issues seeking more details:

• https://github.com/facontidavide/PlotJuggler/issues/68
• https://github.com/facontidavide/PlotJuggler/issues/67

[Chunting]

The time stamps can be ploted via PlotJuggler. All the joint angles have been saved in csv file, now I'm using jrl-umi3218