0a9d6f5f0f
* Generic Multi Function Call ability added to extensible nodes * Code gen improvements, including allowing for more manually codewritten extension of codegen facilities * CVAR to disable automatic update of deprecated node * Fixed variable sorting error that can apply to parser/runtime added variables * Made Edit/SerializeContext ClassBuilder public, as it was needlessly private * Fixed dangerous Datum::GetValueAddress(), it now checks for an empty storage AZSTd::any, as does Datum::Empty()