Add Application.Dapr/Bindings related docs

[SoTrx]

• Read the contribution guide
• [NA] Commands include options for Linux, MacOS, and Windows within codetabs
• New file and folder names are globally unique
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Description

Hey,

This PR adds some documentation on the Dapr Binding Building Block
It also adds the auth block for all compatible Dapr components, which was previously undocumented (my bad).

Issue reference

Fixes: radius-project/radius#7960