API Schema objects around recursive API structure VideoStreamingCapability are leaking

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Bug Report

Some API Schema objects are not being free'd in memory when Core shuts down.
Impact is low as these are allocated once with a lifecycle equal to that of the application.

Reproduction Steps

1. valgrind --leak-check=full ./smartDeviceLinkCore
2. Wait long enough that API objects are constructed (valgrind slows app a lot)
3. send SIGINT

Expected Behavior

Valgrind says no memory was leaked

Observed Behavior

Many definitive leaks are detected around API Schema VideoStreamingCapability and its children

OS & Version Information

• SDL Core Version: develop @ d7c804d

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Closed via #3703