Builds a carousel like SelectorCarousel but does not wait for the circuits to load, sets up a placeholders
and inserts data when loaded, used for the Tutorial on the learn page (in code SelectPage) in the TutorialSelector
Initializes the carousel with placeholders, does not wait for the circuits to load, sets up a placeholder
Parameters
svgFn: Function
{function} a function that returns the innerHTML of the svg element of the carousel item, used to display a placeholder svg until the actual circuit data is loaded
Builds a carousel like SelectorCarousel but does not wait for the circuits to load, sets up a placeholders and inserts data when loaded, used for the Tutorial on the learn page (in code SelectPage) in the TutorialSelector