function conforms(source) {
      return baseConforms(baseClone(source, true));
    }
Creates a function that invokes the predicate properties of `source` with
the corresponding property values of a given object, returning `true` if
all predicates return truthy, else `false`.

@static
@memberOf _
@since 4.0.0
@category Util
@param {Object} source The object of property predicates to conform to.
@returns {Function} Returns the new spec function.
@example

var users = [
  { 'user': 'barney', 'age': 36 },
  { 'user': 'fred',   'age': 40 }
];

_.filter(users, _.conforms({ 'age': function(n) { return n > 38; } }));
// => [{ 'user': 'fred', 'age': 40 }]