Support for installing a sources package via package manager console

[dazinator]

Now that both a sources and ordinary install zip are being produced, when you do an Install-Module from package manager console in VS - it needs to know which version of the package to install.

I'll make it so that by default it will install the non sources version of the package as before. If you need to install the sources version, because you use dynamic compilation etc, then you can call Install-ModuleSources which works in exactly the same way as Install-Module and has the same arguments (for attaching etc) its just it will select the sources package as the one to deploy.

[dazinator]

This has been released: https://github.com/dazinator/DnnPackager/releases/tag/2.0.6%2B2
Documentation here: https://github.com/dazinator/DnnPackager/wiki/Package-Manager-Console-Commands#sources-packages