Imply car chase -> chasing

BUR #19212 has been rejected.

mass update chasing motor_vehicle -> car_chase
create implication car_chase -> chasing

As the tag name imply, car chase is a type of chasing that involves motor vehicle(s), so I think it needs to be implicated to the main tag.

Also do BUR update on posts with motor vehicle + chasing but not car chase yet. Since there are only handful of posts with these tags that does not feature car chase, I will manually remove the tag on these posts myself.

Be careful, there are several posts like post #3358984 and post #3068990, where the motor vehicle is neither involved in a chase nor a car. And I imagine there are a few cars present in the background of a foot chase.

Car chase would be better off as motor vehicle chase from a usability standpoint.

This bulk update request is pending automatic rejection in 5 days.

The bulk update request #19212 (forum #251199) has been rejected by @evazion.

Populated car chase manually.

BUR #20241 has been approved by @evazion.

create alias car_chase -> vehicle_chase

Generalizing to vehicle chase because it includes things like motorcycles, bicycles, fantasy vehicles, and so forth.

The bulk update request #20241 (forum #255747) has been approved by @evazion.