The `periodWillChange()` implementation to detect map keys to ignore.
Previously, we relied on the `GoString()` method to output the same
format always to determine the current path to the
map[string]interface{} node, but that may change depending on the underlying
implementation of go-cmp.
Instead, parse the go-cmp `Path` step by step and construct a JSON path
to the node in a stable format.
Signed-off-by: Blaine Gardner <blaine.gardner@redhat.com>
Blaine Gardner
5320830781