structural equality library

 This package contains a structural equality library for Golang.
 .
 One can define expectations on objects (e.g. API responses or expected
 events) by creating an instance of seq.Map, which is provided by this
 package.
 .
 Maps can be nested or they could have flat paths. Values could be
 represented with strings, primitive types, instances of seq.Map or
 JSON-serializable objects.
 .
 Once the expectation exists, one could compare it with an actual
 object. If the actual object has some invalid or missing properties,
 the result will have nice error messages.