Added appveyor config file

appveyor.yml

@@ -0,0 +1,13 @@
+version: '{build}'
+image: Visual Studio 2017
+configuration: Release
+platform: Any CPU
+build:
+  verbosity: minimal
+test: off
+artifacts:
+- path: src\MicroStationTagExplorer
+- path: interop\Excel 2016
+- path: interop\View V8i
+- path: src\MicroStationTagExplorer\bin\AnyCPU\Release\MicroStationTagExplorer.exe
+deploy: off