tidy: consistent node naming

generated_materials/camera_path_depth.json

generated_materials/camera_path_rgb.json

helper_nodes/pose_generator.py

launch/__pycache__/basic_sim_example_launch.cpython-310.pyc

launch/basic_sim_example_launch.py

nerf_sim/__pycache__/nerf_render.cpython-310.pyc

nerf_sim/__pycache__/render_lidar.cpython-310.pyc

nerf_sim/__pycache__/sim_depth_generator.cpython-310.pyc

nerf_sim/__pycache__/sim_pcd_generator.cpython-310.pyc

nerf_sim/__pycache__/sim_rgb_generator.cpython-310.pyc

nerf_sim/sim_pcd_generator.py

setup.py