Centralized support for suspend/resume

[dmlloyd]

Create a centralized coordination point for suspend/resume coordination, with initial support for CRaC-style suspend/resume. At present, this PR only shows the API points and is not yet ready for integration.

TODO:

• Update essential services to coordinate around the suspend/resume point.
• Figure out where to put the hook to register the Resource.
• Look at merging with, or removing, the existing CRaC integration with Vert.x web introduced by Add initial support of Project CRaC #23950.
• Investigate eager pre-suspend class initialization based on the list of project classes (only in suspend/resume case).
• Add a config flag to enable suspend/resume which causes PostResumeBuildItem to be consumed. Ensure that it is not possible to accidentally include the suspend step otherwise there will be problems.
• Maybe meta-annotation support e.g. @Consume(PostResumeBuildItem.class) public @interface PostResume {}??

[dmlloyd]

Superseded by #28867.