Add appveyor.yml for windows CI

and where we go

appveyor.yml

@@ -0,0 +1,29 @@
+version: 4.2.{build}
+
+os: Visual Studio 2015
+
+environment:
+  matrix:
+    - VSVER: Visual Studio 14 2015 Win64
+
+platform:
+  - x64
+
+configuration:
+  - Release
+
+install:
+  - cmake --version
+  - git submodule -q update --init
+
+before_build:
+  - cmake -G"%VSVER%" -DBUILD_META_EXAMPLES=OFF .
+
+build:
+  parallel: true
+  project: build\shogun.sln
+
+test_script:
+  - cd build\test\
+  - ctest -V
+  - cd ..\..