[Elastic-Agent] Enable more granular control of monitoring

[michalpristas]

What does this PR do?

Followup to #18284 where i was not happy with the form. this allows more granular control of monitoring especially when on partial failures
Instead of having true/false state of monitoring as a whole, this PR allows agent to keep per type state. As a result steps are not generated if not necessary

Checklist

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have made corresponding change to the default configuration files
• I have added tests that prove my fix is effective or that my feature works
• I have added an entry in CHANGELOG.next.asciidoc or CHANGELOG-developer.next.asciidoc.

Fixes: #18320

[elasticmachine]

Pinging @elastic/ingest-management (Team:Ingest Management)

[elasticmachine]

💚 Build Succeeded

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Build stats

• Build Cause: [Pull request [Elastic-Agent] Enable more granular control of monitoring #18346 updated]

• Start Time: 2020-05-14T06:02:01.355+0000

• Duration: 37 min 32 sec (2191716)

Steps errors

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• Name: Report to Codecov

  • Description: curl -sSLo codecov https://codecov.io/bash for i in auditbeat filebeat heartbeat libbeat metricbeat packetbeat winlogbeat journalbeat do FILE="${i}/build/coverage/full.cov" if [ -f "${FILE}" ]; then bash codecov -f "${FILE}" fi done

  • Result: FAILURE

  • Duration: 1 min 28 sec

  • Start Time: 2020-05-14T06:32:07.049+0000

  • log

[elasticmachine]

💚 Build Succeeded

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Build stats

• Build Cause: [Pull request #18346 updated]

• Start Time: 2020-05-26T08:42:14.159+0000

• Duration: 30 min 10 sec

Test stats 🧪

Test	Results
Failed	0
Passed	505
Skipped	127
Total	632