metadata: use +perk in vip dejs
::
++ vip
%- su
- ;~ pose
- (tag %$)
- (tag %reader-comments)
- (tag %member-metadata)
+ %- perk
+ :~ %reader-comments
+ %member-metadata
+ %$
==
::
++ metadatum
[%vip vip]
==
::
- ++ tag |*(a=@tas (cold a (jest a)))
- ::
++ md-resource
^- $-(json ^md-resource)
%- ot
