Begin work on replacing make.cmd with powershell version make.ps1
Begin work on replacing make.cmd with powershell version make.ps1


Former-commit-id: 9ed94807b680a6458efc7c62ee452830e432a517
rob-somerville/riak-dotnet-client,basho/riak-dotnet-client,basho/riak-dotnet-client,rob-somerville/riak-dotnet-client