feat: place recognised files with validate_pr

The report named the folder of each file and left the copy to the contributor, one file and one .variants/ name at a time. --place copies each recognised file from outside bios/ to its folder under the name the lists declare, or to the .variants/ slot of a name already held, never over a file. A hash with two names or two folders is not placed.

scripts/generate_readme.py

@@ -930,11 +930,12 @@ the most useful contribution.
 
 From a clone, the file goes to `bios/Manufacturer/Console/filename`, and
 `python scripts/validate_pr.py path/to/file` names that folder for a file still
-outside `bios/`. Given a folder, such as an old card's BIOS folder, it checks
-every file under it. A file over the browser's 25 MB limit goes in that way,
-up to the 100 MB GitHub accepts in a push. A larger file stays out of the pull
-request: [open an issue]({LARGE_FILE_ISSUE_URL}) with the hashes
-`validate_pr.py` prints, and a maintainer adds it to the `large-files` release.
+outside `bios/`, and `--place` copies it there under its declared name. Given a
+folder, such as an old card's BIOS folder, it checks every file under it. A
+file over the browser's 25 MB limit goes in that way, up to the 100 MB GitHub
+accepts in a push. A larger file stays out of the pull request: [open an
+issue]({LARGE_FILE_ISSUE_URL}) with the hashes `validate_pr.py` prints, and a
+maintainer adds it to the `large-files` release.
 
 ## Add a platform