Automatically resize disk to next whole MB

[JakobGreen]

It would be nice if this tool could automatically resize the disk to the next whole MB before uploading. It is kind of a pain to resize the disk manually and is error prone.

[diwu1989]

👍 i think this is a great idea if its easy to implement, cus the user is explicitly uploading the disk to Azure, therefore this pre-processing should be considered just another part of the upload process