Added base_frame_id param to the rs_launch.py file

[FarStryke21]

Updates with reference to Issue #3312 .

The PR aims to expose the base_frame_id param which was missing in the rs_launch.py file. This allows the user to modify the default base_frame_id from link to something of the user's choice when using the launch file.

Following the specified guidelines, I have executed the pr_check.sh script, and no errors were reported!

[sysrsbuild]

Can one of the admins verify this patch?

PR Overview

This PR adds a new configurable parameter, base_frame_id, to the rs_launch.py file to enable users to customize the default root frame in the sensor transform tree.

• Adds the base_frame_id parameter with a default value of 'link'.
• Updates the launch file to expose the parameter for user configuration.

Reviewed Changes

File	Description
realsense2_camera/launch/rs_launch.py	Added a new base_frame_id parameter to the launch file

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Comments suppressed due to low confidence (1)

realsense2_camera/launch/rs_launch.py:93

• Please consider adding tests to verify the behavior of the new base_frame_id parameter to ensure that custom configuration works as expected.

{'name': 'base_frame_id',                'default': 'link', 'description': 'Root frame of the sensors transform tree'},