Provide option to export/extract all external modules to generate one bicep file to have one deployment.

Provide option to export/extract all external modules to generate one bicep file to have one deployment. In that case is would be ease to get snapshot o what was applied and make one deploy not multiple.

The issue names no files, tests, or entry points. Begin by clarifying how external modules should be extracted into one Bicep file, how one deployment should work, and what snapshot output is expected; done means the behavior and acceptance criteria are agreed before implementation.

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