- add params to vehicle_minutestocharge

- add params to vehicle_minutestocharge
- add #define for charge voltage assumed by ACC
- add CTP SMS command
- add timestamp to STAT SMS command
- generalize timestring_to_mins
- TR: CTP uses CAC100 for better resolution
- TR: move MinutesToChargeCAC code into vehicle_teslaroadster_minutestocharge
- TR: separate taper profiles for each charge mode