SECURITY-ENDPOINT: reconcile host.name and host.hostname

[nnamdifrankie]

Issue:

elastic/kibana#70201

• add host.name to metadata document.
• add host.name and host.hostname to policy document.

[kevinlog]

@nnamdifrankie good call on adding in the rest of what's available - are there a lot of implications to tests when the schema adds a lot more fields?

[jonathan-buttner]

@nnamdifrankie good call on adding in the rest of what's available - are there a lot of implications to tests when the schema adds a lot more fields?

Naa, I don't think so. The only change here would be that the fields are searchable but the backend isn't going to leverage that right now. I guess we could test that that the documents are still displayed correctly in the UI but that shouldn't have changed because the backend would be returning the entire document previously anyway.

[nnamdifrankie]

@kevinlog I have to update the typescript types, but I think the data is pliable and where it is missing will be undefined as per the tests.