Updated packing module to support NuGet.exe pack argument changes.

[jpnewman]

After updating NuGet.exe to version 4.6.2 the 'output' argument for the pack command is not longer supported. This PR changes the deprecated 'Output' argument to 'OutputDirectory'.

Can you please create a new NuGet package on NuGet.org with this change?

[Suremaker]

Hello @jpnewman, sure I will update it, but there are still failing tests. Could you please fix them?

[JPNewman-Wonga]

Hi, I'll have a look at the failing tests and get them green. However, it seems that Nuget.exe version 4.6.2 changes the way it handles version numbers and mostly support SemVer 2.0.0.

Also it has versioning bugs like: -

• NuGet pack ignores nuspec versions [unwanted version normalization?] NuGet/Home#3050

This might mean that the TestSolutions and Tests with numbers like 1.0.0.0 might need to change to use SemVer, including psmake.mod.testing version 1.3.1.1.

[Suremaker]

Hey @JPNewman-Wonga , I think there is nothing wrong of adding a nuget.exe >= 4.6.2 requirement for the new version of psmake and update the versioning of it's packages, however we have to be sure that psmake will be able to properly resolve the dependencies via both: Modules.ps1 as well as Fetch-Package function.