Added iOS and Android Azure Storage Samples

[priankakariatyml]

Thanks for taking the time to contribute. Please take a moment to fill out the information below.

Implementations #. The iOS and Android samples demonstrate how to implement Azure storage SDK to upload files to a blob container.

[msftclas]

Thank you for your submission, we really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.

:x: priankakariatyml sign now
_{You have signed the CLA already but the status is still pending? Let us recheck it.}