Add support for plotting boolean values.

Append a "-b" and then a float to plot boolean values as going
between 0 and that value.

For example, a plot definition of:
fridge status zeroed -b 0.5

would plot the zeroed flag as 0 when it's false and 0.5 when it's true.

Change-Id: Ie118d02c2079a92b43756c664a3927ace468eebe
2 files changed
tree: 94b00ca45e38e832b9395f0032de79866bb1eefb
  1. aos/
  2. doc/
  3. frc971/
  4. output/
  5. vision/
  6. .clang-format
  7. .gitignore
  8. README.txt