[CognitiveServices] LUIS Programmatic SDK

[pcostantini]

Based on the following Spec PRs:

• [CognitiveServices] LUIS Programmatic API Spec azure-rest-api-specs#2083
• [CognitiveServices] LUIS Programmatic Spec - Latest changes azure-rest-api-specs#2152
• [CognitiveServices] LUIS SDKs directory re-structure azure-rest-api-specs#2214

This PR includes:

• C# Client for Programmatic API Endpoint generated with AutoRest (config)
• API Token Credential
• Unit Tests
• Directory re-structure for CS Language SDKs

---

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• Please add REST spec PR link to the SDK PR
• I have read the contribution guidelines.
• The pull request does not introduce breaking changes.

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• Title of the pull request is clear and informative.
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Testing Guidelines

• Pull request includes test coverage for the included changes.

SDK Generation Guidelines

• If an SDK is being regenerated based on a new swagger spec, a link to the pull request containing these swagger spec changes has been included above.
• The generate.cmd file for the SDK has been updated with the version of AutoRest, as well as the commitid of your swagger spec or link to the swagger spec, used to generate the code.
• The *.csproj and AssemblyInfo.cs files have been updated with the new version of the SDK.

[shahabhijeet]

For Azure.CognitiveServices.LUIS.csproj

1. Add header/footer imports in the project file, include comments around the imports.
   For CognitivieServices.Language.tests.csproj
2. Remove lines 10, 25-27
3. Change < VersionPrefix > to < Version >

For Microsoft.Azure.CognitiveServices.Language.csproj
Model this project according to the comments given for other SDK proejcts.
Basically make test project and SDK projects similar to other data plane projects that are within cognitive services directory (take an example from search sdks)

[shahabhijeet]

@pcostantini include the comment around the imports of the project file similar to below
https://github.com/Azure/azure-sdk-for-net/blob/psSdkJson6/src/SDKs/CognitiveServices/dataPlane/Search/BingCustomSearch/BingCustomSearch/Microsoft.Azure.CognitiveServices.Search.CustomSearch.csproj#L2

Also include imports that are missing at the bottom of the project file.

[shahabhijeet]

remove line 7,8 and replace < VersionPrefix to < Version >

[shahabhijeet]

remove line 10

[shahabhijeet]

include the imports in LUIS.Tests project.
Remove lines 5,6
Remove lines 9-16 (all these references are implicitly added to each test project)
Add relevant properties about assemblyname, version etc to LUIS.Test project file (basically model this project file according to other test project files.

[pcostantini]

Hi @shahabhijeet,
Feedback was applied. Let me know if there is anything else we should look into.
Regards,
-PabloC.