Add bulkGetGroups to asset library client

[anilbhaskaran]

Aws Connected Device Framework Affected Module(s):
libraries/clients/assetlibrary-client

I'm submitting a ...

• bug report
• feature request

Description:
Expose "bulkGetGroups" method via asset library client. This method is available in swagger definition, but not exposed via client library

Current behavior:
"bulkGetGroups" not exposed via asset library client

Expected behavior:
"bulkGetGroups" should be exposed via asset library client

Steps to reproduce:

1. Navigate to libraries/clients/assetlibrary-client/groups.apigw.service.ts or libraries/clients/assetlibrary-client/groups.lambda.service.ts
2. "bulkGetGroups" method definition is not present.

Additional Information: