Add dll generation and publiscation to the CD pipeline

[Chingling152]

Summary

Add automated DLL generation and publication as part of the CD pipeline, ensuring that compiled artifacts are being produced and made available on every release.

Motivation

Currently, DLLs are not being generated after the publication (only the .nupkg files) so they need to be created manually to be available on every release.

Proposed Solution

• Add a build step to generate the compiled DLL files
• Publish the DLL as pipeline artifact
• Attach the DLL on the GitHub Release