[Security Solution][Entity Analytics] Adding Context information in Risk Summary

[tiansivive]

Adding context in Risk Summary, part of #8207 Meta
This PR handles both #8357 and #8359

Closing #174443 since this PR includes those changes as well

[elasticmachine]

Pinging @elastic/security-entity-analytics (Team:Entity Analytics)

[tiansivive]

@nkhristinin This is the updated PR after our discussion regarding the score fields.
I took a new screenshot so I think now these are the correct values.

@SourinPaul and @jaredburgettelastic
As discussed previously, for now I've rounded all fields to 2 decimal cases. That seems like the best way to present this data but do let me know if we need to alter this logic.

[tiansivive]

@elasticmachine merge upstream

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: b657f54

Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
securitySolution	4871	4872	+1

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
securitySolution	11.4MB	11.4MB	+431.0B

History

• 💚 Build #187517 succeeded f5390fd
• 💔 Build #187496 failed a1d635743bfd6a0f75437e5c8ca867d080915be2
• 💔 Build #187475 failed a18204e
• 💔 Build #187430 failed 69ea84c
• 💔 Build #186772 failed 03ee3ca
• 💔 Build #186761 failed a3d5143aee222f6f1e5f4d6f201ae84a9d707b2f

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

cc @tiansivive

[machadoum]

Great job! 🚀
The code LGTM and also desk tested it.

Btw, those two decimals in the risk score look weird =/