[ReleasePR resourcehealth] [Hub Generated] Review request for Microsoft.ResourceHealth to add version stable/2018-07-01 (#1580)

Create to sync Azure/azure-rest-api-specs#13817
[ReCreate this PR](https://github.com/azure-resource-manager-schemas/compare/master...AzureSDKAutomation:sdkAuto/resourcehealth?expand=1)

Author: msftbot[bot]