Ported .Net Core commits:

hondacrx:
- Initial commit: Switch to .Net Core 2.0
- Fix build and removed not needed files
Fabi:
- Updated solution platforms.
- Changed folder structure.
- Change library target framework to netstandard2.0.
- Updated solution platforms again...
- Removed windows specific kernel32 function usage (Ctrl-C handler).

Source/WorldServer/WorldServer.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <Import Project="..\..\default.props" />
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <ApplicationIcon>Blue.ico</ApplicationIcon>
+    <StartupObject>WorldServer.Server</StartupObject>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Game\Game.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="WorldServer.conf.dist">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>