Standardize powertrain type classification

[ugtthis]

Wanted to add this so I could query powertrain type easier for opendbc-site

Problem

• Each make has its own way of indicating powertrain type
• Harder to query well, a certain car's powertrain type.
  Currently I could parse the name which includes the make, model, and model years to see if hybrid, PHEV, or electric is in it or I could check if the certain car make, has a hybrid/EV type flag

Proposed Solution

I am breaking it up into 3 PRs

Current PR:

• By default, all vehicles are PowertrainType = PowertrainType.ICE for backward compatibility
• Included changes for Tesla as an example

2nd PR: Added PowertrainType to individual cars #1484

• Use PowertrainType for all vehicle definitions in values.py
• I originally thought I would migrate everything to the new powertrain type but then I noticed that Hyundai, Toyota, and Subaru use the older car make specific, powertrain flags on different files that affect hardware. I think it would be better for that migration to be a separate future PR for each make mentioned, which is why you will still see the old powertrain flags in this specific PR

3rd PR: Powertrain name formatter for all car makes #1502

• Remove older methods of indicating powertrain types from vehicle definitions in values.py
• Adds a common function into opendbc/car/__init__.py where if a car is a certain PowertrainType then add specified string(EV, Hyrbid, PHEV) to end of name. This is similar to what /car/ford/values.py line 83 does, which I think would be beneficial for all car makes to use versus every car make with their own slightly different solution of accomplishing this

[ugtthis]

Ran into a problem where I didn't consider how certain car platforms also have the ability to be available in multiple powertrain types(ex. Ford escape available in ICE, hybrid, and plug-in hybrid ). Converting to draft for now

-UPDATE:-
I ended up explicitly defining the different car models to show separately instead of using the Ford method, which automates creating the separate car model depending on the flag it sees. Refer to commit bb2331c