Convert 'disable node caching' properties to object-valued

[ptitzler]

Is your feature request related to a problem? Please describe.
This is an internal change only that has no impact on the user experience.

#2957 provides the foundation for pipeline property changes that make it easier to maintain and extend the code. With the delivery of #2961 and #2942 all node properties listed under "Additional properties" have been retrofitted to take advantage of this new implementation. The only remaining property that still needs to be updated is the Disable node caching property. This change does require pipeline migration. Since Elyra 3.12 already required migration we are trying to avoid the need to require yet another migration in 3.13. Therefore we are planning to defer delivery of this enhancement to a later release that might require migration for other reasons.

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