feat(autoware_planning_msgs): move tier4_planning_msgs to autoware_planning_msgs

[cyn-liu]

Description

In order to make the future Autoware.Core repos no longer dependent on TIER4 repos, move all tier4_planning_msgs still in use in Autoware.Universe repos to autoware_planning_msgs.

Related links

#114

How was this PR tested?

planning simulator can run successfully.

Notes for reviewers

None.

Effects on system behavior

None.

[github-actions]

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[mitsudome-r]

I think most of the messages should go under autoware_internal_msgs.
We can create a new package autoware_internal_planning_msgs and add them there.

[mitsudome-r]

Also, I would first focus on moving the messages that are really used for Autoware.Core.
Are all the messages that you mentioned really used for the packages that you are planning to port?

[xmfcx]

Can you reopen this PR within the https://github.com/autowarefoundation/autoware_internal_msgs ?
I'll close this PR.

(You may add it similar to https://github.com/autowarefoundation/autoware_internal_msgs/tree/main/autoware_internal_perception_msgs with the name autoware_internal_planning_msgs)