Feature #2967

Updated by Ruben S. Montero about 7 years ago

* Instantiate VM Template: Provide custom attributes
* Instantiate FLOW Template: Provide network configuration and custom attributes
* Show FLOW Template: Show network configuration info
* Show VM Template: Show custom attrs info
* Flow Management tab: Do not show Flow VMs in VM tab. Add Flow navigation and management tab

* Network configuration and custom attrs must only contain /\w+/
* FLOW Template update select interfaces inputs from the vm_template_contents string