[salesforce] Implement apex data stream for Salesforce

[yug-rajani]

• Enhancement

What does this PR do?

• Generated the skeleton of Salesforce integration package.
• Added 1 data stream ( apex )
• 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.
  

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).

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]

🚀 Benchmarks report

To see the full report comment with /test benchmark fullreport

[elasticmachine]

💚 Build Succeeded

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Build stats

• Start Time: 2023-01-11T06:20:49.438+0000

• Duration: 15 min 22 sec

Test stats 🧪

Test	Results
Failed	0
Passed	18
Skipped	0
Total	18

🤖 GitHub comments

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[elasticmachine]

🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (3/3)	💚
Files	100.0% (3/3)	💚
Classes	100.0% (3/3)	💚
Methods	100.0% (39/39)	💚
Lines	96.963% (862/889)	❕
Conditionals	100.0% (0/0)	💚

[kush-elastic]

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!

[agithomas]

@SubhrataK , can you please review the dashboard , especially the colors used to represent the chart?

[agithomas]

LGTM

[elasticmachine]

Package salesforce - 0.3.0 containing this change is available at https://epr.elastic.co/search?package=salesforce