Network Watcher and Dashboards and other bugs

[mikebaker26]

there are a few bugs with new network watcher

• agentextention stops sending data randomly
• topology not displayed or downloadable

now it appears dashboards cannot handle pin'd latency results.

[#2]

Connection Troubleshoot not displaying Resource Groups.   After deleting Network Watcher RG and adding Network Watcher for region, it shows Resource Groups, but does not display VMs.