deleated unneeded files. cleaned up organization of cfg settings. modified cfg settings to remov ability to set occlusion manager even when its false by making occlusion activation its own term

created new notebook to run npsc files. Modified simulaiton builder to accept npsc files. Modified bulk runner to create npsc files automatically

Single class generation and metrics updates

See merge request !19

Left turn filter

See merge request !18

vision bugfix, agent removal bugfix, updated collision metrics + start of time_to_collision check for insertion + gitignore

Merge branch 'left-turn-filter' of https://git.uwaterloo.ca/ehdykhne/nuplan-devkit into left-turn-filter

Shea car footprint bug

See merge request !16

Insertion into simulation history buffer

See merge request !14