Release auth 07232019

[sarangan12]

This is the result of this PR: #4331 and the discussion around it. I have regenerated the arm-authorization in this PR. I have documented the steps below:

1. Executed the following command:

gulp codegen --azure-rest-api-specs-root /Users/saranganrajamanickam/Projects/temp/azure-rest-api-specs --use @microsoft.azure/autorest.typescript@4.1.1 --package @azure/arm-authorization

2. Checked the regenerated code. Most of them are comments/updates. I did not see any breaking changes. So, I have updated the version in package.json from 8.3.1 to 8.3.2.

Since @kpajdzik is OOF, I am requesting @amarzavery to review and approve this PR. TIA.

@ramya-rao-a FYI......

Output for the regeneration command

[11:15:53] Requiring external module ts-node/register
(node:17801) ExperimentalWarning: The fs.promises API is experimental
[11:15:54] Using gulpfile ~/Projects/temp/azure-sdk-for-js/gulpfile.ts
[11:15:54] Starting 'codegen'...
Passed arguments: codegen, --azure-rest-api-specs-root, /Users/saranganrajamanickam/Projects/temp/azure-rest-api-specs, --use, @microsoft.azure/autorest.typescript@4.1.1, --package, @azure/arm-authorization
>>>>>>>>>>>>>>>>>>> Start: "["@azure/arm-authorization","@azure/arm-authorization-profile-2019-03-01-hybrid"]" >>>>>>>>>>>>>>>>>>>>>>>>>
Executing command:
------------------------------------------------------------
autorest --typescript --typescript-sdks-folder=/Users/saranganrajamanickam/Projects/temp/azure-sdk-for-js --license-header=MICROSOFT_MIT_NO_VERSION /Users/saranganrajamanickam/Projects/temp/azure-rest-api-specs/specification/authorization/resource-manager/readme.md --use=@microsoft.azure/autorest.typescript@4.1.1
------------------------------------------------------------
AutoRest code generation utility [version: 2.0.4283; node: v10.15.1]
(C) 2018 Microsoft Corporation.
https://aka.ms/autorest
   Loading AutoRest core      '/Users/saranganrajamanickam/.autorest/@microsoft.azure_autorest-core@2.0.4387/node_modules/@microsoft.azure/autorest-core/dist' (2.0.4387)
   Installing AutoRest extension '@microsoft.azure/autorest.typescript' (4.1.1)
   Installing AutoRest extension '@microsoft.azure/autorest.modeler' (2.3.51)
INFORMATION: Getting the package version from the pre-existing package.json file in the output folder.
INFORMATION: Got version "8.3.1" for package "@azure/arm-authorization" from existing package.json file.

Installing dependencies...
npm notice created a lockfile as package-lock.json. You should commit this file.
added 44 packages from 166 contributors and audited 70 packages in 2.796s
found 0 vulnerabilities



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No tests to run
>>>>>>>>>>>>>>>>>>> End: "["@azure/arm-authorization","@azure/arm-authorization-profile-2019-03-01-hybrid"]" >>>>>>>>>>>>>>>>>>>>>>>>>