Use lodash cloneDeep() method to isolate the original object

[bllanos]

Requested reviewers: None Issues: #2

Summary of Changes

• Using lodash's cloneDeep method to create a copy of the object to be wrapped. The wrapper then uses the copy to store and retrieve property values.

  Testing Performed

• Verified that methods are cloned, which is interesting, given lodash's documentation: "An empty object is returned for uncloneable values such as functions, DOM nodes, Maps, Sets, and WeakMaps."
• Verified that the original object is not modified by the wrapper. For instance, when the wrapper needs to replace a property with a wrapper, the new wrapper is not assigned to the original object.

  Known Issues

• The cloning process does not copy non-enumerable properties.

[bllanos]

The failure to copy non-enumerable properties means that the wrapper object may behave significantly differently from the original object, depending on the application.