feat(codegen): move source files to 'src' folder

[trivikr]

Issue

Refs: #1306

Description

The changes in scripts and codegen to move source files to 'src' folder.

• smithy-ts PR posted at feat: move source files to "src" folder smithy-lang/smithy-typescript#434
• clients are updated in feat(clients): move source files to 'src' folder #2845

Testing

Check testing section of #2845

---

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[codecov-commenter]

Codecov Report

Merging #2844 (83d0a1b) into main (38bb6c3) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #2844   +/-   ##
=======================================
  Coverage   60.42%   60.42%           
=======================================
  Files         554      554           
  Lines       28886    28886           
  Branches     7072     7072           
=======================================
  Hits        17453    17453           
  Misses      11433    11433           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 38bb6c3...83d0a1b. Read the comment docs.

[trivikr]

The failing codegen-ci will succeed after smithy-ts PR is merged smithy-lang/smithy-typescript#434

I've verified that commands from CI are successful in my workspace.

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs and link to relevant comments in this thread.