adding RunLoadHammer property to LoadHammer to control run execution loop
* LoadHammer Run method gets a load test; +unit test
running LoadHammer Run method in a loop
making RunCommand property virtual
LoadHammer Run method calls RunCommand of test
adding cstor to AzureStorageQueueLoadTestRetriever that stores a conn string
[bf] - passing null param to AzureStorageQueueTestRetriever cstor
dropping the word Load from AzureStorageQueueLoadTestRetriever class name
renaming ITestRetriever and its GetLoadTest method
adding azure storage nuget pkg