The Container Images for Windows Server 2022 have been published, and
we can start building test images using them, so we can start adding
jobs for them.
The image versions for the e2e test images have been bumped in a previous
commit, but haven't been promoted yet. We don't need to bump them here.
httpd-2.4.46-win64-VC15.zip no longer exists, so we have to use
httpd-2.4.48-win64-VC15.zip instead.
Adds Windows support for most of the images.
Adds a README explaining the image building process, including the
Windows Container image building process.
Windows images will require other base images, and thus, we will need
to explicitly specify the OS type a base image is for in order to
avoid confusion or errors.
