Adds 2018 Honda Fit support

[energee]

commaai/opendbc#100

[rbiasini]

@energee once conflicts are fixed, is this good to go?

[rbiasini]

@energee, would love to merge this in if somebody can confirm it works

[rbiasini]

Still testing needed?

[energee]

I think its close, there is a user who has it working and he may have a diff for this branch with some further changes.

[energee]

Side note, how is this PR a year old?

[rbiasini]

Time flies 🤷‍♂️

[AravindaDP]

Note: Variable names in interface.py are changed between 0.5 and 0.6. So it would need refactoring before merging.
I'm currently working with a fit owner to see if this works. Will update if we could get this working on 0.6.2

[AravindaDP]

I have worked with a Fit owner to get his vehicle working on 0.6.2 based on these changes.

cabana link: https://my.comma.ai/cabana/?route=99e3eaed7396619e%7C2019-08-12--13-56-01&max=19&url=https%3A%2F%2Fchffrprivate-vzn.azureedge.net%2Fchffrprivate3%2Fv2%2F99e3eaed7396619e%2Fda964fc10ba22af53289a955fb652b43_2019-08-12--13-56-01

[energee]

Can we test this, @AravindaDP ?

[AravindaDP]

@energee @rbiasini

Here is the cabana drive provided by fit user for this
https://my.comma.ai/cabana/?route=99e3eaed7396619e%7C2019-08-13--15-07-03&max=0&url=https%3A%2F%2Fchffrprivate-vzn.azureedge.net%2Fchffrprivate3%2Fv2%2F99e3eaed7396619e%2Fced4327cf0038699b7d1cbe59e5f8843_2019-08-13--15-07-03

[energee]

@vanillagorillaa ^

[energee]

Can we verify tire stiffness value on some turns? probably needs some adjustment.

I would expect ts value to be around .75 - 1