Upgrade Project to .Net Core

[Cryptopractor]

This pull request will update to project files to enable the project to be built against the .Net Standard/.Net Core. The project will now build in Visual Studio 2019 or using the 'dotnet' command from any supported platform. I have tested it on Linux (Ubuntu) but I do not have access to a Mac so I cannot test it on macOS.

I have not tested it, but I do not believe it is compatible with Mono anymore, not that it should be an issue.

[rstm-sf]

Hello!

This project has not been updated for a very long time. This work was carried out in another project (CharsetDetector/UTF-unknown#24), which is now supported and contains various improvements.

You're welcome!

[Cryptopractor]

Hello, Thank you. Chris Get Outlook for Android<https://aka.ms/ghei36>

…

________________________________ From: Rustam Sayfutdinov <notifications@github.com> Sent: Saturday, February 8, 2020 6:22:56 PM To: errepi/ude <ude@noreply.github.com> Cc: Chris Morrison <securus@homemail.com>; Author <author@noreply.github.com> Subject: Re: [errepi/ude] Upgrade Project to .Net Core (#17) Hello! This project has not been updated for a very long time. This work was carried out in another project (CharsetDetector/UTF-unknown#24<CharsetDetector/UTF-unknown#24>), which is now supported and contains various improvements. You're welcome! — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub<#17?email_source=notifications&email_token=AC763CVOX2ZALPTEJWPCX6LRB32ABA5CNFSM4KKKWJ4KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOELFYKVQ#issuecomment-583763286>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AC763CTV6DYQI2LYSNLD4DLRB32ABANCNFSM4KKKWJ4A>.