Allow ResourceViewHelper to accept resource:// paths
with I92dccba6b5acd623ff33eb538e62d0682f00b95e / https://review.typo3.org/#/c/13647/, the
uri argument of the resource ViewHelper was removed. However, it turned out that there is still the need of a way to use
resource://... uris for pointing to resources.
Talking on IRC with Karsten and Aske, we said the already present
path argument should be extended to accept also