clang-format vs plugin support for Visual Studio 2017

[hstefan]

Summary

With the release of Visual Studio 2017, we need to at the very least claim support for it in the current manifest file. With the changes introducted in this patch we can install the extension again, but a warning message will be shown stating that it's not supported (https://twitter.com/parsley72/status/846558416751411200).

To get the rid of the warning more work is necessary, as VS 2017 changed some things about extensions, see more here: https://docs.microsoft.com/en-us/visualstudio/extensibility/how-to-migrate-extensibility-projects-to-visual-studio-2017. I'm currently working on those changes, but it has been suggested in the mail list that this first patch is integrated in the meantime.

[hans]

Looks good to me.

Do you have commit access, or would you like me to commit it for you?

[hstefan]

Glad to hear it.

I don't have commit access, so I'd need someone to commit it for me.

cfe/trunk/tools/clang-format-vs/source.extension.vsixmanifest.in

<SupportedProducts>
         <Edition>Pro</Edition>
       </VisualStudio>
       <VisualStudio Version="12.0">
         <Edition>Pro</Edition>
       </VisualStudio>
       <VisualStudio Version="14.0">
         <Edition>Pro</Edition>
       </VisualStudio>
+      <VisualStudio Version="15.0">
+        <Edition>Pro</Edition>
+      </VisualStudio>
     </SupportedProducts>
     <SupportedFrameworkRuntimeEdition MinVersion="4.0" MaxVersion="4.0" />
   </Identifier>
   <References>
         <Reference Id="Microsoft.VisualStudio.MPF" MinVersion="10.0">
             <Name>Visual Studio MPF</Name>
         </Reference>
   </References>
   <Content>
     <VsPackage>|%CurrentProject%;PkgdefProjectOutputGroup|</VsPackage>
   </Content>
 </Vsix>