feat(map_loader): add selected map loader

[Shin-kyoto]

Description

These PRs must be merged before these PRs.

• PR for autoware_msg
  • modify service
• PR for autoware_launch
  • modify config for pointcloud_map_loader

I would like to add selected map loader and metadata publisher to pointcloud_map_loader.

See https://github.com/orgs/autowarefoundation/discussions/2812#discussioncomment-5540316 for detail.

Related links

• TIER IV COMPANY INTERNAL LINK
• PR for autoware_msg
  • modify service
• PR for autoware_launch
  • modify config for pointcloud_map_loader

Tests performed

I tested with a data from Autoware tutorial. The map is divided into 20m grids (sample-map-rosbag_split.zip).

I have confirmed that the Autoware performs the same as the current Autoware when enable_selected_load is set false.

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[yukkysaito]

LGTM