Saves base64 encoded data as a file on the remote mobile device.
The application under test should be
built with debuggable flag enabled in order to get access to its container
on the internal file system.
remotePath - Path to file to write data to on remote device
If the path starts with @applicationId/ prefix, then the file
will be pushed to the root of the corresponding application container.
base64Data - Base64 encoded byte array of data to write to remote device