added appveyor.yml

Author: jishnub

.appveyor.yml

@@ -0,0 +1,32 @@
+# Documentation: https://github.com/JuliaCI/Appveyor.jl
+environment:
+  matrix:
+  - julia_version: 1.0
+  - julia_version: 1.2
+  - julia_version: nightly
+platform:
+  - x86
+  - x64
+matrix:
+  allow_failures:
+    - julia_version: nightly
+branches:
+  only:
+    - master
+    - /release-.*/
+notifications:
+  - provider: Email
+    on_build_success: false
+    on_build_failure: false
+    on_build_status_changed: false
+install:
+  - ps: iex ((new-object net.webclient).DownloadString("https://raw.githubusercontent.com/JuliaCI/Appveyor.jl/version-1/bin/install.ps1"))
+build_script:
+  - echo "%JL_BUILD_SCRIPT%"
+  - C:\julia\bin\julia -e "%JL_BUILD_SCRIPT%"
+test_script:
+  - echo "%JL_TEST_SCRIPT%"
+  - C:\julia\bin\julia -e "%JL_TEST_SCRIPT%"
+# on_success:
+#   - echo "%JL_CODECOV_SCRIPT%"
+#   - C:\julia\bin\julia -e "%JL_CODECOV_SCRIPT%"