Revised release for submission FX-v3.1
Revised release for submission for Udacity testing. Includes the following improvements:
- Added fallback light classification using magnified image clips in case of uncertain initial detection to improve accuracy from farther away
- Increase speed threshold to transition to creep speed and improve stopping distance margin when light is detected at low speed
- Increase steering filtering constant to slow down and reduce initial steering correction to get on waypoints at start of test