Provide windows version binary package.

[fenginsc]

Download the Scala binaries for 3.0.0 at github.
I downloaded the binary installation package, but there is no windows version of the startup file. I hope to provide the windows version of the bat startup file. The current version is the *nix version of the bash startup file.

[michelou]

Duplicate of issue #12551.

Related to (closed) issue #10300.

PS. PR is pending (subset of PR #5444).