Moved runtime abstractions and added SemVer + extensions to abstractions.

src/Umbraco.Abstractions/Umbraco.Abstractions.csproj

@@ -4,4 +4,8 @@
         <TargetFramework>netstandard2.0</TargetFramework>
     </PropertyGroup>
 
+    <ItemGroup>
+      <PackageReference Include="Semver" Version="2.0.4" />
+    </ItemGroup>
+
 </Project>

src/Umbraco.Abstractions/VersionExtensions.cs

@@ -5,7 +5,7 @@ using Semver;
 
 namespace Umbraco.Core
 {
-    internal static class VersionExtensions
+    public static class VersionExtensions
     {
         public static Version GetVersion(this SemVersion semVersion, int maxParts = 4)
         {

src/Umbraco.Core/Umbraco.Core.csproj

@@ -631,8 +631,6 @@
     <Compile Include="IO\SystemDirectories.cs" />
     <Compile Include="IO\SystemFiles.cs" />
     <Compile Include="IO\ViewHelper.cs" />
-    <Compile Include="IRuntime.cs" />
-    <Compile Include="IRuntimeState.cs" />
     <Compile Include="Logging\DebugDiagnosticsLogger.cs" />
     <Compile Include="Logging\Serilog\SerilogLogger.cs" />
     <Compile Include="Logging\LoggingTaskExtension.cs" />
@@ -1446,7 +1444,6 @@
     <Compile Include="Sync\RefreshInstructionEnvelope.cs" />
     <Compile Include="Sync\RefreshMethodType.cs" />
     <Compile Include="Sync\ServerMessengerBase.cs" />
-    <Compile Include="Sync\ServerRole.cs" />
     <Compile Include="Sync\SingleServerRegistrar.cs" />
     <Compile Include="Collections\TopoGraph.cs" />
     <Compile Include="TypeExtensions.cs" />
@@ -1457,7 +1454,6 @@
     <Compile Include="UdiRange.cs" />
     <Compile Include="UdiTypeConverter.cs" />
     <Compile Include="UriExtensions.cs" />
-    <Compile Include="VersionExtensions.cs" />
     <Compile Include="XmlExtensions.cs" />
     <Compile Include="PackageActions\IPackageAction.cs" />
     <Compile Include="PackageActions\PackageActionCollection.cs" />