Initial commit of pycdm code from Chris Jack at CSAG

git-svn-id: https://svn.apache.org/repos/asf/incubator/climate/branches/csag@1522915 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: bc115a5f99f2fd4f90fde13c26de8e1fa7b87b85
Climate has become a TLP

git-svn-id: https://svn.apache.org/repos/asf/climate/branches/csag@1573437 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: a200915826534f688383ece4d7dd3c20e61e2982