Allow function prefix to set

[dspasojevic]

Having to call functions like this:

http POST https://sarpnfbdjd.execute-api.ap-southeast-2.amazonaws.com/dancinefly/create-task/cinefly-backend-dancinefly-cloneStoryboardFunction

Exposes some machinery that should remain private. It would be nicer if the it could be called like:

http POST https://sarpnfbdjd.execute-api.ap-southeast-2.amazonaws.com/dancinefly/create-task/cloneStoryboardFunction

Or - even bettter:

http POST https://sarpnfbdjd.execute-api.ap-southeast-2.amazonaws.com/dancinefly/create-task/clone-storyboard

[NoxHarmonium]

I think this will be much easier with #107 where we can set the name of the URL to whatever we want and even allow the end-user to override the url name.

I'm going to say that we do that first before we implement this one.