Enhance state reporting for complex resources

Summary of the new feature / enhancement

As a system administrator configuring infrastructure with DSC,
I want to know which sub-properties and array items are out-of-state or were changed,
So that I don't have to manually compare complex objects and array items manually.

Currently, the DSC engine can only report when top-level properties are out of state (for test operations) or changed (for set operations). For resources with array and object properties, this requires the user to carefully review the desired/actual or before/after state for the property to understand which subproperty or array item triggered the reporting for the top-level field.

For example, consider the following output snippet for the result of a test operation:

desiredState:
  foo:
    bar: true
    baz: false
  fruit: ['apple', 'banana']
actualState:
  foo:
    bar: false
    baz: false
  fruit: ['apple']
differingProperties: ['foo', 'fruit']

This problem is amplified for resources with more deeply nested objects and arrays.

Proposed technical implementation details (optional)

No response

The issue concerns DSC engine reporting for test and set operations; start by tracing how differingProperties and desiredState/actualState or before/after state are produced. Done means reporting the nested sub-properties and array items that differ or changed, including deeply nested values.