Rename opentelemetry-extension-incubator to opentelemetry-api-incubator, merge opentelemetry-api-events

[jack-berg]

Resolves #6121. Summary of changes:

• BREAKING: Rename io.opentelemetry:opentelemetry-extension-incubator to io.opentelemetry:opentelemetry-api-incubator
• BREAKING: Rename packages io.opentelemetry.extension.incubator.* to io.opentelemetry.api.incubator
• BREAKING: Stop publishing io.opentelemetry:opentelemetry-api-event. Merge contents into io.opentelemetry:opentelemetry-api-incubator.
• BREAKING: Rename package io.opentelemetry.api.events to io.opentelemetry.api.incubator.events

Part of the goal of bundling several breaking changes into a single release to reduce churn.

cc @breedx-splk

[jack-berg]

The package changes as well.

[jack-berg]

I considered making an equivalent change to rename opentelemetery-sdk-extension-incubator to opentelemetry-sdk-incubator, but realized that opentelemetry-sdk-extension-incubator is different in that it actually does incubate SDK extensions, not just SDK code. For example, it incubates view file config and file config, both of which are autoconfigure extensions.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.06%. Comparing base (34b64b1) to head (8a743ba).

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #6289      +/-   ##
============================================
+ Coverage     91.04%   91.06%   +0.02%     
- Complexity     5726     5729       +3     
============================================
  Files           625      625              
  Lines         16744    16744              
  Branches       1713     1713              
============================================
+ Hits          15244    15248       +4     
+ Misses         1006     1003       -3     
+ Partials        494      493       -1     

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[jack-berg]

FYI, if we can't get this PR and a followup to be able to define event payloads in the log record body in time for the next release, I think we need to revert #6253.

[breedx-splk]

Yeah, I support this. Sorry about the delay in getting it rubber stamped....kubecon timing is a little tricky. I hope we can still get the remaining event stuff in! 🤞🏻

[jack-berg]

@open-telemetry/java-approvers I'll merge this tomorrow if there are no additional comments. Need to keep moving on this to bundle all the changes w/ churn in time for the next release.