[Monitor] Adding new multi-dimensional metrics API

[gucalder]

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[gucalder]

This the PR #1613 is for the resource-manager side.

[azuresdkciprbot]

Hi There,

I am the AutoRest Linter Azure bot. I am here to help. My task is to analyze the situation from the AutoRest linter perspective. Please review the below analysis result:

File: specification/monitor/data-plane/readme.md
Before the PR: Warning(s): 1 Error(s): 3
After the PR: Warning(s): 1 Error(s): 3

File: specification/monitor/resource-manager/readme.md
Before the PR: Warning(s): 23 Error(s): 10
After the PR: Warning(s): 23 Error(s): 10

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[azuresdkciprbot]

Hi There,

I am the AutoRest Linter Azure bot. I am here to help. My task is to analyze the situation from the AutoRest linter perspective. Please review the below analysis result:

File: specification/monitor/data-plane/readme.md
Before the PR: Warning(s): 1 Error(s): 3
After the PR: Warning(s): 1 Error(s): 3

File: specification/monitor/resource-manager/readme.md
Before the PR: Warning(s): 23 Error(s): 10
After the PR: Warning(s): 23 Error(s): 10

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[sergey-shandar]

@gucalder this PR contains changes of data plane and resource management. I think, the changes of resource management should be moved to #1613

[gucalder]

Sequencing the PRs to separate concerns.