Configure appveyor build

Does not include tests, as those don't work yet.

Author: JayBazuzi

README.md

@@ -1,2 +1,3 @@
-# ASP.NET API Versioning
-Provides a set of libraries which add service API versioning to ASP.NET Web API, OData with ASP.NET Web API, and ASP.NET Core.
+[![AppVeyor Build status](https://ci.appveyor.com/api/projects/status/ho6w0yc612i6jmnp?svg=true)](https://ci.appveyor.com/project/Microsoft/aspnet-api-versioning)
+
+Provides a set of libraries which add service API versioning to ASP.NET Web API, OData with ASP.NET Web API, and ASP.NET Core.

appveyor.yml

@@ -0,0 +1,12 @@
+image: Visual Studio 2015
+environment:
+  TreatWarningsAsErrors: true
+before_build:
+- dotnet restore
+- nuget restore -SolutionDirectory . samples/webapi/BasicWebApiSample/BasicWebApiSample.csproj
+- nuget restore -SolutionDirectory . samples/webapi/BasicODataWebApiSample/BasicODataWebApiSample.csproj
+build:
+  publish_nuget: true
+  publish_nuget_symbols: true
+test: off
+