Added DRS example files

[RyanFitzSimmonsAK]

*Issue #, if available: Internal docs feedback ticket

*Description of changes: Added a directory for DRS and added the provided examples files. Manually checked that these examples render correctly.

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.43%. Comparing base (c4681b5) to head (14fac2b).
⚠️ Report is 392 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #10308      +/-   ##
===========================================
+ Coverage    93.39%   93.43%   +0.04%     
===========================================
  Files          210      211       +1     
  Lines        17052    17283     +231     
===========================================
+ Hits         15925    16149     +224     
- Misses        1127     1134       +7     

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[kdaily]

Lots of new docs, nice!

Few things to check, see inline comments.

Also, check for the formatting of recovery instance IDs in these files (and maybe more?): disconnect-recovery-instance.rst, stop-failback.rst, get-failback-replication-configuration.rst, reverse-replication.rst, start-failback-launch.rst, terminate-recovery-instances.rst, and update-failback-replication-configuration.rst. Looks like recovery instance ID uses s-1234567890abcdef0. Do actual DRS recovery instance IDs use i- prefix (EC2 instance IDs)?

The describe-recovery-instances.rst output correctly shows "recoveryInstanceID": "i-1234567890abcdef0" and "ec2InstanceID": "i-1234567890abcdef0", but the commands using --recovery-instance-id pass in s-1234567890abcdef0.

[kdaily]

Also note the failing CI test, there seems to be a missing required parameter to one of the example commands:

https://github.com/aws/aws-cli/actions/runs/27447126863/job/81134513239?pr=10308#step:5:975