Target .NET Core 2.0 instead of .NET 4.5

[sparr]

If this project was re-targeted against .NET Core then it would run natively on OSX and Linux and generally be more portable.

This would resolve #54

[mvegter]

@sparr Not really. As far as I'm aware .NET Core doesn't have any (G)UI support as it is "focused on services and command line applications". I'm currently working in my fork on this support, it is a very low priority.

Best option is to stay on the .NET framework and using WinForms, as the mono-project does support WinForms.

[sparr]

Thanks. I had not realized there was a GUI.

[kaosine]

I just had someone tell me about this project and wondered about linux availibilty. I swear I saw somewhere that WPF got ported but I'd have to find it again. I'd love to have it availible if it's possible and I guess I'll do some research. (sorry for misspellings, having some issues with right clicking...)

[GrantByrne]

.net core 3 has wpf support; however, it only runs in Windows.

I think it has to do with WPF relying on a Windows only graphics framework.

[mvegter]

@darsparx and @HolyMoo Depressurizer uses WinForms not WPF, thus .NET Core doesn't really help.