Creating additional disks belongs in a seperate action

[sciurus]

#178 added the ability to create additional disks. The code that was added to create_domain should be in new action, similar to create_domain_volume or create_network_interfaces. create_domain should be limited to creating the VM itself.

We should also look at moving methods added to config into another module.

[purpleidea]

I caused this problem, so feel free to harass me to review patch and to buy the patch writer a $beverage.

[infernix]

This is still valid. Flagging as enhancement.

[cornfeedhobo]

I too would contribute a beverage of the patcher's choosing.

It would be nice if when this is broken out, it supported when the user is bringing their own volume along and wants it uploaded to the storage provider.