[Delivers #43560245 #43560247 #43560249 #43560251 #43560265 #43560267 #43560269 #43560271]  Added snapshot support (Create, List, Show, and Delete).  Added test coverage for each method.
Merge pull request #47 from jasonmitschke/AddCloudBlockStorageSupport_Snapshot

[Delivers #43560245 #43560247 #43560249 #43560251 #43560265 #43560267 #43560269 #43560271]  Added snapshot support (Create, List, Show, and Delete).  Added test coverage for each method.