Add new sourceModels property to model

[timotheeguerin]

resolves #2818

Add a new sourceModels property that keeps track of models used to construct it. sourceModels is an array of a new SoruceModel object which contains metadata on how the model was used:

• is: model A is B
• spread: model A {...B}
• intersection: alias A = B & C

[azure-sdk]

All changed packages have been documented.

• ✅ @typespec/compiler
• ✅ @typespec/html-program-viewer

Show changes

@typespec/compiler - fix ✏️

[API] Add new sourceModels property to model

@typespec/html-program-viewer - fix ✏️

Add sourceModels property to model view

[azure-sdk]

You can try these changes at https://cadlplayground.z22.web.core.windows.net/prs/3191/

Check the website changes at https://tspwebsitepr.z22.web.core.windows.net/prs/3191/