add option to turn signal while obstacle swerving

[beyzanurkaya]

Checklist

• I've read the contribution guidelines.
• I've searched other issues and no duplicate issues were found.
• I've agreed with the maintainers that I can plan this task.

Description

Although there is no turning on the single lane road, the right and left turn signals are on when the obstacle swerves.

Purpose

Adding option for turn signals to light only on turns, or to light both on turns and when swerving obstacles.

Possible approaches

Adding a parameter; if this parameter is true it will be on the turn signal while the EGO is swerving the obstacle, but if it is false then the turn signal will be off.

Definition of done

It should ensure that the turn signal is on or off while the obstacle swerving, depending on whether the parameter is true or false.