zeppelin git commit: add basic .appveyor.yml

Repository: zeppelin Updated Branches: refs/heads/branch-0.7 f609719d5 -> 813cda39a add basic .appveyor.yml ### What is this PR for? After appveyor ci is enabled for windows, PR build status shows red cross because of missing .appveyor. This PR add skeleton appveyor.yml. ### What type of PR

zeppelin git commit: add basic .appveyor.yml

Repository: zeppelin Updated Branches: refs/heads/master 129741c2f -> 1ff545321 add basic .appveyor.yml ### What is this PR for? After appveyor ci is enabled for windows, PR build status shows red cross because of missing .appveyor. This PR add skeleton appveyor.yml. ### What type of PR is i