BRP strict field in query

[Leinnan]

Objective

• Allow skiping components that don't have ComponentId yet instead of failing bevy/query request.

Solution

• Describe the solution used to achieve the objective above.

Testing

My naive approach boils down to:

• bevy/list to get list of all components.
• bevy/query with empty components and has fields and a option that contains result of the bevy/list.

Before that change I end up with bunch of Component xxx isn't used in the world because some of the components wasn't spawned at any moment yet in the game. Now it should work.

Migration Guide

• BrpQueryParams now has strict boolean field. It serfs as a flag to fail when encountering an invalid component rather than skipping it. Defaults to false.

[villor]

Very nice addition! 👍

• Maybe we should also change the response to a Lenient/Strict enum, with errors list included for the Lenient response. That way the client is not kept in the dark about any skipped components. (look at bevy/get)
• Documentation needs to be updated as well.

[github-actions]

It looks like your PR is a breaking change, but you didn't provide a migration guide.

Could you add some context on what users should update when this change get released in a new version of Bevy?
It will be used to help writing the migration guide for the version. Putting it after a ## Migration Guide will help it get automatically picked up by our tooling.

[Leinnan]

@alice-i-cecile is there anything missing now?