For Nrm4sap quickstart add more dashboards

[edyu002]

Summary

This request added 3 dashboards to the existing nrm4sap quickstart which is compatible of New Relic Monitoring for SAP V3.0 Service Pack 2 and above.

Pre merge checklist

• [ x] Did you check you NRQL syntax? - Does it work?
• [ x] Did you include a Data source and Documentation reference?
• [x ] Are all documentation links publicly accessible?
• [ x] Did you check your descriptive content for voice and tone?
• [ x] Did you check your descriptive content for spelling and grammar errors?
• [ x] Did you review your content with a subject matter expert? (e.g. a Browser agent quickstart is reviewed with a member of the Browser Agent team)

Dashboards

• [ x] Does the PR contain a screenshot for each of your dashboards?
• [ x] Do your screenshots show data?
• [x ] Has the sanitization script been run on each dashboard?

Alerts

• [ x] Did you check that your alerts actually work?
• [ x] Are you trying to create standalone alerts? Standalone alerts are deprecated. They should only be included in quickstarts.