fix(docs): corrected vector from rear axis to sensor mounting point

[paagkame]

Reference to a related issue in the repository

#447

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Changed the start of vector pointing to the physical mounting position of the sensor.
It was: Center of the bounding box.
It is: Middle of the rear axis (coordinate system).

It is a bug fix according to the related issue.
It shall enhance the understanding of MovingObjects and the related coordinate systems.
It has not been tested. But since this is only an svg not code-related, no testing is needed.
Hence, I don't think it will break any existing functionality or force me to update to a new version.

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@HendrikAmelunxen please reviewing proposed changes.

Check the checklist

• My code and comments follow the style guidelines and contributors guidelines of this project.
• I have performed a self-review of my own code.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• I have added tests that prove my fix is effective or that my feature works.
• New and existing unit tests / travis ci pass locally with my changes.

[paagkame]

@HendrikAmelunxen

Here is what the svg looks now:

If Ok, please approve and label with ready for merge. If not, please label CCBReviewNeeded.

[paagkame]

@pmai @HendrikAmelunxen

update of svg after input from ccb. Please have a look if this fits now:

A description about bbcenter_to_rear is documented here Which I used for naming the end of the vector from center of the bounding box to the rear axle.

[stefancyliax]

Image was approved in the SensorModelling WG meeting 29.10.2021