Capability with .NET Core

[ThadHouse]

I ran the portability tester, and got the following regressions that need to be changed to enable .NET Core support

NetworkTablesCore

• [x] System.AppDomain does not exist (We only use for shutdown hooks. Recommended change is to use a static object with a finalizer to do the same thing)
• [x] System.EntryPointNotFoundException (Create our own. Necessary)
• [x] System.Environment Is64BitProcess and OSVersion (Use System.Runtime.InteropServices.ProcessArchitechture and OSDescription)
• [x] System.OperatingSystem.GetPlatform (Figure out something new. Necessary for us however)
• [x] System.PlatformID (Again Necessary for us. Figure something out)
• [x] System.Reflection.Assembly.GetExecutingAssembly (Typeof(CurrentType).GetTypeInfo().Assembly)
• [x] SuppressUnmanagedCodeSecurityAttribute (Can remove, but maybe IfDef it out. Its good to have on windows)

NetworkTablesManaged

• [x] System.Base64FormattingOptions (No alternative, Probably will have to roll our own library)
• [x] System.Convert.ToBase64String (Again roll our own. Needed for NtCore spec)
• [x] System.IO.Stream.Close (Replace with Dispose())
• [x] System.IO.StreamWriter directly opening file (Replace with File.Open and pass that stream to the StreamWriter)
• [x] System.Net.Dns.GetHostEntry (Figure out something new. TBD)
• [ ] System.Net.Sockets.NetworkStream missing get_Socket (This is gonna be a big one, don't know what we will do.)
• [ ] System.Net.Sockets.TcpClient missing BeginConnect, Close, Connect, EndConnect, and get_Client (Again big changes will need to be figured out.)
• [ ] System.Net.Sockets.TcpListener.AcceptSocket (Again a big change. Might just have to move to raw sockets

From the looks of it, NetworkTablesCore is much easier to port, which makes sense since its just a thin wrapper. NetworkTablesManaged is going to require a lot more work.

[ThadHouse]

They will be adding BeginConnect and EndConnect to the Sockets, so we are able to recreate the code. So everything is going to work with core.

[ThadHouse]

11 Completes this. We now have full compatibility with .net core, and the managed version supports Net Standard 1.3, which means UAP support..