feat(autoware.repos): add trt_batched_nms repository

[StepTurtle]

Description

This PR adds trt_batch_nms package to autoware.repos. This plugin is used by the RTMDet model.

Place the trt_batched_nms repository in the universe/external folder.

Related links

• Implement RTMDet to Perception Pipeline autoware.universe#7235

Tests performed

Not applicable.

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[amadeuszsz]

Hi @StepTurtle, I'm currently integrating TensorRT 10.7 into Autoware. Could you please update trt_batched_nms?
NMSParameters and IPluginV2DynamicExt are deprecated. Could you please fix it by removing deprecated API (recommended) or eventually, by adding add_compile_options(-Wno-deprecated-declarations) just below autoware_package() in CMakeLists.txt?