SDK: Allow execution of game actions from extensions/themes

[jhallbachner]

Feature description

Currently, Game Actions can be iterated and information about them captured, but they can only be executed from very specific contexts. I would like to be able to incorporate the running of game actions into a View, so that extension module or a theme can add extra custom controls for executing them.

The specific potential feature that prompted this request is the same one that prompted #2942 , in this case to allow the launching of ROMs directly from the Details/Overview page of a game. In combination these could allow games with more options for execution to more thoroughly visually document what is possible and make it easier to utilize secondary actions.

Screenshots

No response