[proposal] require resources

["Soni \"They/Them\" L." <fakedme@...>]

currently we can require code. but it'd be nice to be able to require 
resources, using (mostly) the same module machinery.
'
require("foo.bar", "res.txt") would look for "res.txt" as a file in 
module "foo.bar", regardless of what 'module "foo.bar"' is - except that 
it must be a module.