hasProp matcher doesn't allow for object equality

Given the following Subject, using the hasProp matcher will return false when providing an equivalent object. This is because the matcher looks for strict equality over object equality.
```javascript

drill(Subject)
.find(MyComponent, m.hasProp('prop', { foo: 'bar' })) // => false

{ foo: 'bar' } === { foo: 'bar' } // => false
_.isEqual({ foo: 'bar' }, { foo: 'bar' }) // => true
```