When provisioning windows machine, it seems that detecting architecture
by checking [System.Environment]::Is64BitProcess doesn't work properly.
Instead pass 32 or 64 as an argument when calling powershell script.

Change-Id: I890ad141b8ef194275848d0e656431753463cd2b
Reviewed-by: Heikki Halmet <heikki.halmet@qt.io>

Visual Studios will be pre-provisioned to tier1/vanilla os when visual
studio update is needed. Even if using pre-configured offline
installer with specific workload and components the installation is
still taking too long. This way we'll reduce provisioning time
significantly

Change-Id: I1f831aef648716dc640ce9cbfb4e63aa54e7afd0
Reviewed-by: Akseli Salovaara <akseli.salovaara@qt.io>

These files were previously stored in the CI source tree, but they do
belong here. They describe the different configurations under which we
want to build Qt and its submodules, in terms of underlying virtual
machine template, host OS, target OS and CI related features that may
also map to Qt configuration features.

Task-number: QTQAINFRA-1074
Change-Id: I7ce48e3b15da757166eeac7531478d3746c8aa7f
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@qt.io>