* Make copy poll max retry, a global driver max retry
* Get support for etags in Azure
* Fix storage driver tests
* Fix auth mess and update docs
* Refactor Azure client and enable Azure storage tests
We use Azurite for integration testing which requires TLS,
so we had to figure out how to skip TLS verification when running tests locally:
this required updating testsuites Driver and constructor due to TestRedirectURL
sending GET and HEAD requests to remote storage which in this case is Azurite.
Signed-off-by: Milos Gajdos <milosthegajdos@gmail.com>
