feat(tier4_perception_launch): make switchable detection by tracker in x2 project

[YoshiRi]

Description

As described in awf PR autowarefoundation#5313, this PR aiming to turn off detection_by_tracker to lower computation burden in X2 sihojiri.

Set use_detection_by_tracker to false if you want skip the process/

Tests performed

Check node diagram in Lsim.

Discussed in Ticket.

Effects on system behavior

Not applicable.

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[badai-nguyen]

IMO use_detection_by_tracker also need to be add here?

autoware.universe/launch/tier4_perception_launch/launch/object_recognition/detection/camera_lidar_radar_fusion_based_detection.launch.xml

Line 151 in d41e5a9

<group>

-> <group if="$(var use_detection_by_tracker)">

and here

autoware.universe/launch/tier4_perception_launch/launch/object_recognition/detection/camera_lidar_fusion_based_detection.launch.xml

Line 129 in d41e5a9

<group>

-> <group if="$(var use_detection_by_tracker)">

since it also becomes unnecessary when detection_by_tracker is disable.
BTW, we can fix it in another PR

[YoshiRi]

@badai-nguyen
You are right. I fixed it in 2ab407d.