Update Package.swift

[ncooke3]

Removes CHANGELOG.md from the excludes section of GoogleDataTransport target in package manifest.
This is done because the CHANGELOG.md was moved to root in #19.

Also removes the README.md from the excludes section of GoogleDataTransport target because that is also at root.

[google-oss-bot]

Coverage Report

Affected SDKs

• GoogleDataTransport-ios-GoogleDataTransport.framework

  SDK overall coverage changed from 55.47% (a7b0ff5) to 45.78% (767e153) by -9.68%.

  Click to show coverage changes in 19 files.

  Filename	Base (a7b0ff5)	Head (767e153)	Diff
  GDTCCTCompressionHelper.m	0.00%	87.14%	+87.14%
  GDTCCTNanopbHelpers.m	0.00%	58.82%	+58.82%
  GDTCCTUploadOperation.m	0.00%	91.17%	+91.17%
  GDTCCTUploader.m	16.00%	90.29%	+74.29%
  GDTCORAssert.m	88.89%	0.00%	-88.89%
  GDTCORClock.m	85.26%	69.47%	-15.79%
  GDTCORConsoleLogger.m	75.86%	20.69%	-55.17%
  GDTCORDirectorySizeTracker.m	90.91%	63.64%	-27.27%
  GDTCOREndpoints.m	100.00%	0.00%	-100.00%
  GDTCOREvent+GDTCCTSupport.m	0.00%	37.56%	+37.56%
  GDTCOREvent.m	97.70%	64.37%	-33.33%
  GDTCORFlatFileStorage.m	91.22%	14.57%	-76.65%
  GDTCORLifecycle.m	60.24%	42.17%	-18.07%
  GDTCORPlatform.m	62.13%	52.32%	-9.81%
  GDTCORRegistrar.m	69.50%	68.79%	-0.71%
  GDTCORTransformer.m	90.99%	0.00%	-90.99%
  GDTCORTransport.m	86.05%	0.00%	-86.05%
  GDTCORUploadBatch.m	0.00%	100.00%	+100.00%
  GDTCORUploadCoordinator.m	79.53%	61.40%	-18.13%

Test Logs

• Base (a7b0ff50): https://github.com/google/GoogleDataTransport/actions/runs/752296832
• Head (767e1533): https://github.com/google/GoogleDataTransport/actions/runs/752357244

[ncooke3]

I see there is a comment on line 41 above this target's declaration to "Restructure directory structure to simplify the excludes here."

Perhaps adding a folder Tests/ at root to contain all the test directories. Additionally, maybe ProtoSupport/ could be moved to root as well. This would eliminate the need for the excludes section entirely. Thoughts?

[paulb777]

Migrating to the structure described at https://github.com/firebase/firebase-ios-sdk/blob/master/AddNewPod.md would be good. Any changes would need to be coordinated with google3 and copybara

[John24-a]

Wingenroth Elsa Facebook

[paulb777]

Migrating to the structure described at https://github.com/firebase/firebase-ios-sdk/blob/master/AddNewPod.md would be good. Any changes would need to be coordinated with google3 and copybara