Get manifest-mode vcpkg.jsons in order

[antkmsft]

Put the version number as 99.99.999 so that the developers don't try to increment it manually. Drop unnecessary fields. Put an $comment indicating that the file is a manifest-mode file and thet the SDK developers don't have to increment the version.

Make sure the dependencies are up to date and match the package dependencies.

Additionally, look whether DownloadDepVersion versions are up to date (most likely, they are pretty old)

Also, see if all version>= in vcpkg.json (both manifest-mode and release template) are up to date.

[antkmsft]

Since it is "version-string", maybe we even can put "dev"/"current"/"latest"/"build"/"manifest-mode" as version, not even 99.99.999.

[github-actions[bot]]

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