Allow user to automatically delete CloudWatch logs in batch that are > 14 days old

[jikawa-az]

Closes #54
AWS PutLogEvents will not upload a batch log if the logs in the batch are older than 14 days. Therefore we will allow the user to specify an option in FileManagerStrategy to automatically delete 14 day old logs from the batch.

In an effort to minimize runtime, we will first upload the correctly batched logs before deleting any remaining logs over 14 days old.

Related PR opened in cloudwatchlogs-ros1 to allow user to set delete_stale_data option in FileManagerStrategyOptions:
Add option for FileManagerStrategy delete stale data #64

Signed-off-by: Jesse Ikawa jikawa@amazon.com

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

Merging #56 into master will increase coverage by 0.15%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #56      +/-   ##
==========================================
+ Coverage   82.48%   82.64%   +0.15%     
==========================================
  Files          57       57              
  Lines        2398     2420      +22     
==========================================
+ Hits         1978     2000      +22     
  Misses        420      420              

Flag	Coverage Δ
#ROS_1	82.64% <100.00%> (+0.15%)	⬆️
#ROS_2	84.78% <100.00%> (+0.13%)	⬆️
#dashing	84.78% <100.00%> (+0.13%)	⬆️
#kinetic	82.93% <100.00%> (+0.15%)	⬆️
#melodic	82.62% <100.00%> (+0.15%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...de/cloudwatch_logs_common/utils/log_file_manager.h	60.00% <ø> (ø)
...ile_management/file_upload/file_manager_strategy.h	100.00% <ø> (ø)
...udwatch_logs_common/src/utils/log_file_manager.cpp	93.18% <100.00%> (+0.49%)	⬆️
...ude/cloudwatch_metrics_common/cloudwatch_options.h	100.00% <100.00%> (ø)
...ent/include/file_management/file_manager_options.h	100.00% <100.00%> (ø)
...include/file_management/file_upload/file_manager.h	40.35% <100.00%> (+17.62%)	⬆️
...file_management/file_upload/file_upload_streamer.h	70.90% <100.00%> (+0.53%)	⬆️
...nagement/src/file_upload/file_manager_strategy.cpp	87.14% <100.00%> (+0.09%)	⬆️
...test/file_management/file_upload_streamer_test.cpp	92.85% <100.00%> (+0.14%)	⬆️

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[dabonnie]

I think the changes in the CloudWatch Logs specific parts are fine, but I'm not sure how this affects CloudWatch Metrics.

[dabonnie]

Some minor changes but otherwise it looks good.