This can be dangerous as it refers to a temporary, and GCC 9.0 warns about
its use. Instead add std::initializer_list overloads to common places it
was used in an initializer_list sense.
* Fix C++ ShuffleboardComponent template type
* Fix `WithWidget(WidgetType&)`not being properly capitalized
* Fix data members across dll boundaries by using enum for built in types
Add a Sendable wrapper for VideoSource objects.
Add convenience methods for adding video sources directly to containers
so users won't have to manually wrap video sources.
