Automatically include assemblies with CopyLocal = true in package

[dazinator]

At the moment, DnnPackager will include your target assembly, but for example if you need to include additional assemblies, then you need to modify some msbuild properties to tell DnnPackager about the additional assemblies to include.

It would be better if DnnPackager could automatically include all assemblies in the your project references, that are set to "Copy Local = true".

I haven't found any decent msbuild documentation for getting a list of these assemblies but this looked interesting: http://blog.alexyakunin.com/2009/09/making-msbuild-visual-studio-to.html