add appveyor.yml

Author: phnx47

Unidecode.NET.sln

@@ -10,6 +10,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		LICENSE = LICENSE
 		readme.md = readme.md
 		.editorconfig = .editorconfig
+		appveyor.yml = appveyor.yml
 	EndProjectSection
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Unidecode.NET", "src\Unidecode.NET.csproj", "{3ED46251-F3F1-43F0-8776-A5055D96BB56}"

appveyor.yml

@@ -0,0 +1,27 @@
+version: '{build}-{branch}'
+image: Visual Studio 2017
+
+skip_commits:
+  files:
+    - '**/*.md'
+    
+build_script:
+- pwsh: dotnet build -c Release
+
+test_script:
+- pwsh: dotnet test test -c Release --no-build
+
+after_test:
+- pwsh:  dotnet pack $env:APPVEYOR_BUILD_FOLDER\src -c Release --include-symbols --no-build -o artifacts\nuget
+
+artifacts:
+- path: '**\artifacts\nuget\*.nupkg'
+  name: Nuget
+  
+deploy:
+- provider: NuGet
+  api_key:
+    secure: N5hPFSyZf1EHN9bQ2Bj+0qfuAcxSVpanQqos6kJyUY/IK280ET4IZziCGU/nKiAn
+  artifact: NuGet
+  on:
+    appveyor_repo_tag: true