[Delivers #43563323] Create base provider for Rackspace Cloud Block Storage
[Delivers #43560233] Create Volume functionality
[Delivers #43560237 #43560235] Add Show Volume List and Show Volume Methods
[Delivers #43560239] Delete Volume functionality
[Delivers #43560241 #43560243 #43560261 #43560263] List Volume Types, Describe Volume Type and Test Coverage for both
[Delivers #43560245 #43560247 #43560249 #43560251 #43560265 #43560267 #43560269 #43560271]  Added snapshot support (Create, List, Show, and Delete).  Added test coverage for each method.
Fixed merge issues
Merge pull request #57 from rackspace/AddCloudBlockStorageSupport

Add cloud block storage support