Renaming the nuspec template files because they no longer need processing before being used.

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Removing the template property from the nuget items. And making sure we don't delete the nuspec files anymore.

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Adding the ability to pass properties on to the NuGet pack command

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Updating the nBuildKit settings to match the state of the sample settings.

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Restoring a file that shouldn't have been deleted.

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Further restoring the shared.templatetokens.msbuild file

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Changing the quoting style for the nuget dependencies so that it will work with the new way of handling NuGet pack properties.

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Merge branch 'feature/nugetpackparameters' into develop