[salesforce] Implement login_stream data stream for Salesforce

[kush-elastic]

• Enhancement

What does this PR do?

• Generated the skeleton of Salesforce integration package.
• Added 1 data stream ( login_stream )
• Added data collection logic.
• Added the ingest pipelines.
• Mapped fields according to the ECS schema and added Fields metadata in the appropriate yml files.
• Added system test cases.
• Added two new visualization in the Login dashboard as part of login_stream data stream

1. Top 10 Postal code by user count [Logs Salesforce]
2. Top 10 Application type by user count [Logs Salesforce]

NOTE: The Dashboard is currently exported in 8.7.0-SNAPSHOT for review purpose only, it should be updated to 8.7.0 before merging this PR, so don't merge this PR unless updated to8.7.0

Related issues

• Relates Create package for Salesforce integration #3940
• Relates [salesforce] Add salesforce package foundation along with login_rest data stream #4261
• Relates [salesforce] Add salesforce package foundation along with logout_rest data stream #4323
• Relates [salesforce] Implement apex data stream for Salesforce #4410
• Relates [salesforce] Implement setupaudittrail data stream for Salesforce #4356
• Relates [Salesforce] Add pagination support for login_rest and logout_rest data streams #4866

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. ^8.7.0).

How to test this PR locally

• Clone integrations repo.
• Install elastic-package locally.
• Start elastic stack using elastic-package.
• Move to integrations/packages/salesforce directory.
• Run the following command to run tests.

elastic-package test

[elasticmachine]

💚 Build Succeeded

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Build stats

• Start Time: 2023-04-25T08:15:19.820+0000

• Duration: 17 min 31 sec

Test stats 🧪

Test	Results
Failed	0
Passed	29
Skipped	0
Total	29

🤖 GitHub comments

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[elasticmachine]

🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (5/5)	💚
Files	100.0% (5/5)	💚 12.5
Classes	100.0% (5/5)	💚 12.5
Methods	98.387% (61/62)	👍 14.871
Lines	96.293% (1247/1295)	👍 3.49
Conditionals	100.0% (0/0)	💚

[harnish-crest-data]

LGTM! Approved.

[agithomas]

LGTM

[botelastic]

Hi! We just realized that we haven't looked into this PR in a while. We're sorry! We're labeling this issue as Stale to make it hit our filters and make sure we get back to it as soon as possible. In the meantime, it'd be extremely helpful if you could take a look at it as well and confirm its relevance. A simple comment with a nice emoji will be enough :+1. Thank you for your contribution!

[botelastic]

Hi! This PR has been stale for a while and we're going to close it as part of our cleanup procedure. We appreciate your contribution and would like to apologize if we have not been able to review it, due to the current heavy load of the team. Feel free to re-open this PR if you think it should stay open and is worth rebasing. Thank you for your contribution!

[kush-elastic]

@agithomas, we have resolved merge conflicts. Should we merge this PR?

[elasticmachine]

Package salesforce - 0.6.0 containing this change is available at https://epr.elastic.co/search?package=salesforce