Aggregating route loaders

[guardian-farm]

I wrote a function (LoaderFunction) which handles executing the arguments in sequence, for example, I have a loader that verifies there is a user, the if the user has specific permissions, and lastly the one which actually fetches the data, This allows for small reusable loaders to be written. I've already got the code and would be happy to do the pull request.

const routes: RouteObject[] = [
{
path : "albums",
loader: aggregateLoaders(
redirectIfNoUser,
denyIfNoPermission("view:albums),
fetchAlbums()
)
}
]

This could also be adapted to handle generator functions as well.