`$dynamicRef` / `$dynamicAnchor` resolution

[chanced]

Currently $dynamicRef does not override with the dynamic resolution. There are three issues at play:

1. When loading a document, all nodes are parsed once and referenced when later encountered in $ref, $dynamicRef, $recursiveRef. This is fine for $ref except when the referenced schema has a $dynamicRef or $recursiveRef. In which case, those references need to be replaced with the schema containing the $dynamicAnchor. Currently, if the schema containing $dynamicRef were updated to the reflect the new $dynamicAnchor then it would happen across the application.

2. $dynamicRefs are designed to be evaluated at runtime against data to ensure validity. This means that $dynamicAnchors can reside in conditional branches, such as if/then/else. Without data to compare against, there is no way of knowing which anchor to select.

3. $dynamicRefs are transitive. This means that in a situation where:
   
   FileA has a $ref to FileB and the $dynamicAnchor T
FileB has a $ref to FileC
FileC has a $dynamicRef #T

In order to solve dynamic overlay, after the document is loaded and resolved, every schema is going to need to be cloned and reassigned. Use a map of AbsoluteLocation of the SchemaRef to ensure that a reference hasn't been visited in the cloning process.

I have no idea how to solve conditional/dynamic resolution.

The solution to the third depends on how the second is solved.