Add ability to run snippet when evaluating branch

Another viable workaround, thanks for mentioning Pat!

I think one of the things that’s really important with Skuid page development is making it as self-documenting as possible.  There is still no way to include “comments” on components/pages so having a deliberate “branch” makes the page declaration much more intuitive than either of our proposed workarounds.  Hopeful we’ll see “calling a snippet” for formula added in a future release :slight_smile: