Dotnet support

[robert-lilleker]

Hi, I wanted to be able to integrate this with my CDK stack however I can't seem to get projen to generate a C# package. I've added to the .projenrc.js as seen on my fork https://github.com/awslabs/cdk-serverless-clamscan/compare/main...robert-lilleker:dotnet-support?expand=1 however I get the following message:

[jsii-pacmak] [WARN] Exception occurred, not cleaning up [jsii-pacmak] [WARN] dotnet failed TypeError: Cannot read properties of undefined (reading 'namespace') at DotNetTypeResolver.resolveNamespacesDependencies (/home/ec2-user/environment/forks/cdk-serverless-clamscan/node_modules/jsii-pacmak/lib/targets/dotnet/dotnettyperesolver.js:71:46) at DotNetGenerator.generate (/home/ec2-user/environment/forks/cdk-serverless-clamscan/node_modules/jsii-pacmak/lib/targets/dotnet/dotnetgenerator.js:43:27) at Dotnet.generateCode (/home/ec2-user/environment/forks/cdk-serverless-clamscan/node_modules/jsii-pacmak/lib/target.js:29:28) at async DotnetBuilder.generateModuleCode (/home/ec2-user/environment/forks/cdk-serverless-clamscan/node_modules/jsii-pacmak/lib/targets/dotnet.js:94:9) at async /home/ec2-user/environment/forks/cdk-serverless-clamscan/node_modules/jsii-pacmak/lib/targets/dotnet.js:62:30 at async Function.make (/home/ec2-user/environment/forks/cdk-serverless-clamscan/node_modules/jsii-pacmak/lib/util.js:227:36) at async DotnetBuilder.buildModules (/home/ec2-user/environment/forks/cdk-serverless-clamscan/node_modules/jsii-pacmak/lib/targets/dotnet.js:35:35) at async Promise.all (index 0) at async Object.pacmak (/home/ec2-user/environment/forks/cdk-serverless-clamscan/node_modules/jsii-pacmak/lib/index.js:61:9) 👾 Task "release » build » package" failed when executing "jsii-pacmak" (cwd: /home/ec2-user/environment/forks/cdk-serverless-clamscan) error Command failed with exit code 1.

[dontirun]

I was able to replicate the error. This package has a dependency on cdk-nag. Looking at the .jsii file that gets generated in the compilation process we can see that cdk-nag does have a .NET target.

"cdk-nag": {
...
    "targets": {
      "js": {
        "npm": "cdk-nag"
      },
      "python": {
        "distName": "cdk-nag",
        "module": "cdk_nag"
      }
    }
}

I think the packaging mechanism is expecting a dotnet configuration on cdk-nag and is throwing an error there as it cannot find one. If this is correct, then cdk-nag will have to publish a .NET package to resolve this error.

[dontirun]

@robert-lilleker cdk-nag now has a NuGet package. You should be able to compile the package now (though you may have to delete the yarn.lock before re-attempting).

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[dontirun]

Keep