perf(autoware_auto_perception_rviz_plugin): add simple_visualization_mode for predicted path

[iwatake2222]

Description

• Background
  • FPS on rviz decreases from 30 fps to 5~15 fps when many objects appears due to drawing predicted paths
  • Existing "Simple" mode improves the FPS, but it still less than 30 fps in some cases so more improvement is needed
• Changes
  • This PR adds "Simple2" mode to lighten the rendering process

Tests performed

Appearance

• Normal
  • 
• Simple <- existing
  • 
• Simple2 <- New!!
  • 

Effects on system behavior

Not applicable.

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[Owen-Liuyuxuan]

@tkimura4

I would like to ask why we are using line list instead of line strip for path visualization.

line list takes two times more points in the message to show the same path line.

The most efficient idea should be

1. Use Line strip for lines.
2. Use sphere list to render all node points on the path (use one single sphere list for all paths to speed up the rendering)

[stale]

This pull request has been automatically marked as stale because it has not had recent activity.