Include license identifier in the NuGet package

[reduckted]

Is your feature request related to a problem? Please describe.
For automated tools that gather the license of NuGet packages, it's really handy for the license to be specified in the NuGet package (specifically in the .nuspec file).

Describe the solution you'd like
Include the license identifier in the NuGet package. I think it would require this in the project file (though I haven't tried this):

<PropertyGroup>
    <PackageLicenseExpression>Apache-2.0 OR MS-PL</PackageLicenseExpression>
</PropertyGroup>

Describe alternatives you've considered
N/A

Additional context
Some links to documentation:

• https://docs.microsoft.com/en-us/nuget/reference/nuspec#license
• Self-Contained NuGet Packages - License NuGet/Home#4628
• 'licenseUrl' as package metadata is now deprecated, use 'license' instead NuGet/Announcements#32
• 'licenseUrl' as package metadata is now deprecated, use 'license' instead NuGet/Announcements#32

[reduckted]

Heh, seems like this was added as a comment last year but at some point was removed.

CsvHelper/src/CsvHelper/CsvHelper.csproj

Lines 30 to 32 in 79211dc

	<PackageLicenseUrl>https://raw.githubusercontent.com/JoshClose/CsvHelper/master/LICENSE.txt</PackageLicenseUrl>
	<!--<PackageLicenseExpression>MS-PL OR Apache-2.0</PackageLicenseExpression>-->
	<PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>

[JoshClose]

Thanks. I'll add it back in. It got removed due to some build stuff, but it needs to go back in. I'm missing the logo and probably some other stuff in there too.

[JoshClose]

Fixed. https://www.nuget.org/packages/CsvHelper/12.2.2