feat: add Batch bundle support

[ssvegaraju]

Issue #, if available:

Description of changes:
Added integration tests for awslabs/fhir-works-on-aws-persistence-ddb#144. This PR is in draft mode until the needed packages have been released and updated here.

Checklist:

• Have you successfully deployed to an AWS account with your changes?
• Have you written new tests for your core changes, as applicable?

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

[codecov-commenter]

Codecov Report

Merging #602 (d13198d) into develop (46a2ac0) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop     #602   +/-   ##
========================================
  Coverage    91.42%   91.42%           
========================================
  Files            8        8           
  Lines          280      280           
  Branches        47       49    +2     
========================================
  Hits           256      256           
  Misses          23       23           
  Partials         1        1           

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[Bingjiling]

LGTM!