Add sdk emitters to arm template

[maririos]

Fixes: #1842

We have been working on updating and reviewing the template for SDK emitters on arm. Adding values here so people get the template when they do tsp init

[azure-sdk]

No changes needing a change description found.

[azure-sdk]

You can try these changes here

🛝 Playground	🌐 Website	📚 Next docs

[maririos]

I have updated the file based on feedback. The PR is ready to be reviewed

[raych1]

Should we differentiate between the placeholder value and the real value? package-dir in line#15 and line#13 are different cases. The former one is a placeholder, and users need to update it, but the latter one is the actual value, and users don't need to change it.

[maririos]

so both properties will have at the end the same value, right? if one is a placeholder value, then why do we expose it to users?

[raych1]

My understanding is that csharp namespace option here simply reuses the value of 'package-dir' option. Generally, exposing it allows user to specify the namespace.
However, for python, as shown on line#15, the 'package-dir' option must be a concrete value and cannot be literally set as "{package-dir}".

[maririos]

@msyyc could you help review here and add the values that should be included?

[msyyc]

Here is the example template: https://github.com/Azure/azure-rest-api-specs/blob/175d71800b942faaa4113416d5e395b8ba19ce31/specification/contosowidgetmanager/Contoso.Management/tspconfig.yaml#L19-L23.

As Ray said, package-dir shall be set with specific value while package-name can reuse it with {package-dir} so we shall change the format (maybe package-dir: "<Your Package Dir>" to guide users to set the specific value they want.