Update PR with feedback from design review #15117
Description
Update this PR #15093 with following feedback:
create a branch from this PR branch user/anuverma/cli_CM and fix below:
- rename to setup-module-windows
- instead of removing multiply function keep it with a comment to take it as a reference only: Consider adding some kind of Hello, world as a replacement for the old multiply. It’s there for a newbie module author to know that things worked when they deploy a module. For instance, the first react app screen shows something meaningful when things work.
- Check if TurboModule Spec exists, if not return with error "Create Spec File" to user and end. Dont' try to create a new sepc if doesnt exists