Description
Is your feature request related to a problem? Please describe.
Support for datasource service group (with plural) is missing. This ticket is created to track it.
Describe the solution you'd like
Add datasource for service groups and relevant test cases for testing linking of network security rules.
Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.
Additional context
Since we have already added resource group for address group and service group in release v1.3.0 in this PR against issue #170 .
This PR adds the support of linking service group and address groups to network security rules.