Update manifest for 16.0

Author: rynowak

src/Components/Blazor/BlazorExtension/src/source.extension.vsixmanifest

@@ -12,19 +12,17 @@
         <PreviewImage>Content\WebConfiguration.png</PreviewImage>
     </Metadata>
     <Installation AllUsers="true">
-        <InstallationTarget Id="Microsoft.VisualStudio.Community" Version="[15.0.27617, 16.0)" />
+         <InstallationTarget Id="Microsoft.VisualStudio.Community" Version="[16.0,)" />
     </Installation>
     <Dependencies>
-        <Dependency Id="Microsoft.Framework.NDP" DisplayName="Microsoft .NET Framework" d:Source="Manual" Version="[4.6.1,)" />
+        <Dependency Id="Microsoft.Framework.NDP" DisplayName="Microsoft .NET Framework" d:Source="Manual" Version="[4.7.2,)" />
     </Dependencies>
     <Assets>
         <Asset Type="Microsoft.VisualStudio.VsPackage" d:Source="Project" d:ProjectName="%CurrentProject%" Path="|%CurrentProject%;PkgdefProjectOutputGroup|" />
-        <Asset Type="Microsoft.VisualStudio.MefComponent" d:Source="File" Path="Microsoft.VisualStudio.LanguageServices.Blazor.dll" />
-        <Asset Type="Microsoft.VisualStudio.Assembly" d:Source="File" Path="Microsoft.VisualStudio.LanguageServices.Blazor.dll" />
-        <Asset Type="Microsoft.VisualStudio.VsPackage" Path="Templates.pkgdef" />
+        <Asset Type="Microsoft.VisualStudio.VsPackage"  d:Source="File" Path="Templates.pkgdef" />
         <Asset Type="Microsoft.VisualStudio.VsPackage" d:Source="File" Path="CodeSnippets.pkgdef" />
     </Assets>
     <Prerequisites>
-        <Prerequisite Id="Microsoft.VisualStudio.Component.Web" Version="[15.7.27520.0,16.0)" DisplayName="ASP.NET and web development tools" />
+        <Prerequisite Id="Microsoft.VisualStudio.Component.Web" Version="[16.0,)" DisplayName="ASP.NET and web development tools" />
     </Prerequisites>
 </PackageManifest>