I'd like to get a review for this 8u/hotspot build change for
Windows, to loosen the restriction on what compilers we can use.
8203349: 8u hotspot should recognise later Windows compilers
Changes in the places we (sanity) check version numbers, set some compile
options, and expand the check in vm.make to make sure we put the
object _build_pch_file.obj on the jvm link command.
In compile.make I added blocks for VS2013 and 17, and left them as
duplicated, blocks of settings to make them easier to change independently.
This doesn't change anything about what is "supported" or documented as