Library for validating json and yaml configs in Go (library)

 vcontext is a library supporting validation of config files parsed from
 yaml or json with support for giving context as to where errors occur.
 It is composed of multiple semi-independent packages:
 .
  report: a structure for containing multiple errors, warnings, etc.
  It also contains context (from the path package) for determining where
  in the config the reports came from
 .
  validate: a package for composing a report by validating go structs
 .
  tree: a structure for containing metadata about the location
  (line/column) of objects in the source of the config
 .
  json, yaml: packages for generating trees from json or yaml
 .
  path: a structure for defining how to find json/yaml elements