Adding appveyor build config

Author: JakeGinnivan

appveyor.yml

@@ -0,0 +1,55 @@
+assembly_info:
+  patch: false
+
+platform:
+  - Any CPU
+
+configuration:
+  - Debug
+ 
+build_script:
+  - cmd: nuget restore
+  
+  - cmd: msbuild GitVersion.sln "/p:Configuration=%CONFIGURATION%;Platform=%PLATFORM%"
+  
+  - ps: & "/GitVersionExe/bin/$env:Configuration/GitVersion.exe" /l console /output buildserver /updateAssemblyInfo
+
+  - cmd: appveyor PushArtifact "NuGetExeBuild/GitVersion.Portable.%GitVersion_NuGetVersion%.nupkg"
+  
+  - cmd: appveyor PushArtifact "NuGetCommandLineBuild/GitVersion.CommandLine.%GitVersion_NuGetVersion%.nupkg"
+  - cmd: appveyor PushArtifact "NuGetRefBuild/GitVersion.%GitVersion_NuGetVersion%.nupkg"
+  - cmd: appveyor PushArtifact "NuGetTaskBuild/GitVersionTask.%GitVersion_NuGetVersion%.nupkg"
+
+artifacts:
+  - path: NuGetCommandLineBuild\Tools
+    name: GitVersion_$(GitVersion_NuGetVersion)
+    type: zip
+
+deploy:
+  - provider: NuGet
+    server: http://chocolatey.org
+    api_key:
+      secure: 
+    artifact: /GitVersion.Portable\.$(GitVersion_NuGetVersion)\.nupkg/
+
+  - provider: NuGet
+    api_key:
+      secure: 
+    artifact: /GitVersion.CommandLine\.$(GitVersion_NuGetVersion)\.nupkg/
+
+  - provider: NuGet
+    api_key:
+      secure: 
+    artifact: /GitVersionTask\.$(GitVersion_NuGetVersion)\.nupkg/
+
+  - provider: NuGet
+    api_key:
+      secure: 
+    artifact: /GitVersion\.$(GitVersion_NuGetVersion)\.nupkg/
+	
+  - provider: GitHub
+    release: v$(GitVersion_SemVer)
+    tag: v$(GitVersion_SemVer)
+    auth_token:
+      secure: 
+    artifact: /GitVersion_$(GitVersion_NuGetVersion).zip/