Support two ways of assigning templates via UI. They both open the same dialog in the end, but would be good to test that both paths work.

First:

• Create template via UI 
• Instead of "create template only" button use "Create template and add to system" button 
• It will open up systems tab for that template 
• Assign template to system 
• Verify that selected system is present under template's system tab
• Verify that the host can install from given template

Second:

• Create template via UI 
•  "Create template only"
• Navigate to the teample, Change to "systems" tab
• Assign template to system 
• Verify that selected system is present under template's system tab
• Verify that the host can install from given template