[Azure] Add client.ip mappingto azure.platformlogs

[legoguy1000]

What does this PR do?

Adds the ECS mapping for client.ip to the Azure Platform Logs Datastream

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• If I'm introducing a new feature, I have modified the Kibana version constraint in my package's manifest.yml file to point to the latest Elastic stack release (e.g. ^7.13.0).

Author's Checklist

• [ ]

How to test this PR locally

cd integrations/packages/azure
elastic-package build && eval "$(elastic-package stack shellinit)" && elastic-package test pipeline

Related issues

• Closes Conflicts in Azure Fleet Integrations #1594

Screenshots

[elasticmachine]

💚 Build Succeeded

the below badges are clickable and redirect to their specific view in the CI or DOCS

Expand to view the summary

Build stats

• Start Time: 2021-09-13T15:36:17.801+0000

• Duration: 22 min 58 sec

• Commit: 3731e08

Test stats 🧪

Test	Results
Failed	0
Passed	72
Skipped	0
Total	72

Trends 🧪

[andrewkroh]

run tests

[legoguy1000]

@andrewkroh Fixed formatting error.