* [vcpkg] Use a crypto RNG to generate admin passwords
* Apply code review comments from Stephan and Casey.
* Extract functions into create-vmss-helpers.psm1.
* Put Wait-Shutdown back.
* [vcpkg] Bump Linux VM memory size and do all operations on the temporary disk.
* [llvm] disable optional dependencies to libxml2 and zlib
* [vcpkg] Reduce quotas on the share to something reasonable.
* [mpir] Skip on Linux because it conflicts with libgmp.
Co-authored-by: yurybura <yurybura@gmail.com>
* Adds scripts to generate scale sets for testing Linux.
* Note workaround for https://github.com/microsoft/azure-pipelines-agent/pull/2929
* Switches Windows validation to 'Spot' VMs.
* Opens the git port 9418.
* Removes provisioning of the no longer used 'logs' file share.
* Changes Azure region to 'westus2', which is cheaper.
* Adds +x to all the scripts in scripts/azure-pipelines.
* Use 'xml-results' for all platforms instead of 'raw xml results' on Windows.
