[AutoPR dns/resource-manager] Changes for Alias records support in Azure DNS

[AutorestCI]

Created to sync Azure/azure-rest-api-specs#3726

[AutorestCI]

(message created by the CI based on PR content)

Installation instruction

Package azure-mgmt-dns

You can install the package azure-mgmt-dns of this PR using the following command:
pip install "git+https://github.com/Azure/azure-sdk-for-python@restapi_auto_3726#egg=azure-mgmt-dns&subdirectory=azure-mgmt-dns"

You can build a wheel to distribute for test using the following command:
pip wheel --no-deps "git+https://github.com/Azure/azure-sdk-for-python@restapi_auto_3726#egg=azure-mgmt-dns&subdirectory=azure-mgmt-dns"

If you have a local clone of this repository, you can also do:

• git checkout restapi_auto_3726
• pip install -e ./azure-mgmt-dns

Or build a wheel file to distribute for testing:

• git checkout restapi_auto_3726
• pip wheel --no-deps ./azure-mgmt-dns

Direct download

Your files can be directly downloaded here:

• azure-mgmt-dns-2.0.0.zip
• azure_mgmt_dns-2.0.0-py2.py3-none-any.whl

[codecov-io]

Codecov Report

Merging #3199 into restapi_auto_dns/resource-manager will decrease coverage by <.01%.
The diff coverage is 7.69%.

@@                          Coverage Diff                          @@
##           restapi_auto_dns/resource-manager    #3199      +/-   ##
=====================================================================
- Coverage                               57.2%    57.2%   -0.01%     
=====================================================================
  Files                                   8137     8137              
  Lines                                 164272   164285      +13     
=====================================================================
+ Hits                                   93978    93979       +1     
- Misses                                 70294    70306      +12

Impacted Files	Coverage Δ
...e-mgmt-dns/azure/mgmt/dns/dns_management_client.py	69.69% <7.69%> (-15.21%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 66b4ec2...34a1ede. Read the comment docs.