Added null checks to dynamic store APIs
#59
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We noticed crashes due to missing
nullchecks indynamic_store.rs.Additional background:
SCDynamicStoreCreate/SCDynamicStoreCreateWithOptionscan returnnull. The returned value is currently passed towrap_under_create_rulewithout anullcheck, which leads to an assertion error (Attempted to create a NULL object).This PR adds additional checks and modifies affected APIs to return an
Optioninstead.This change is