Implemented put_block and exported options

Implemented features:

• Added support for put_block in Blob.
• Added support for filter in Blob::list. Now you can filter the blobs to find specifying the starting string.
• Added support for timeout in Blob::list.
• Added support for timeout, prefix and max_results in Container::list.
• Added support for max_results in Container::list. Now you can limit how many containers could be returned by a single call.
• Added support for next_marker in Container::list. Now you can continue enumerating your containers in subsequent calls.

Refactoring:

• Moved Container::list options in a separate structure (azure::storage::container::ListContainerOptions).
• Moved Blob::put_page options in a separate structure (azure::storage::blob::PutPageOptions).

Bugfixes:

• Corrected the format bug in azure::core::range::Range and azure::core::range::ba512_range::BA512Range. Previously the string returned was
  formatted as {}/{} which is invalid for the x-ms-range header. Now the format is bytes={}-{} as expected. I still need to figure out if
  I need to change the FromStr trait too to match the change.

Removed methods:

• Removed ListBlobOptions::new as it was just useless boilerplate.