Add v4 alias block to simple model

A new annotation has been added, V4_ALIASES, since this block
may be confusing for general use, and is only of use to Voila
so that it may use new-style aliases.
Fix formatting on simple Aliased - no functional change
Merge pull request #186 from atlasapi/mbst-8137-add-v4-aliases-for-pa-films

Add v4 alias block to simple model