[C++]add aeronDir() method for context #4032

Job	Run time
C++ Sanitise Build Clang 19	2m 8s
C++ Sanitise Build GCC 14	2m 30s
C++ Slow System Tests Clang 19	2m 14s
C++ Slow System Tests GCC 14	2m 7s
C++ Slow System Tests MSVC	4m 18s
JavaDoc (JDK 17, ubuntu-24.04)	1m 34s
JavaDoc (JDK 21, ubuntu-24.04)	1m 42s
Java Slow Tests (JDK 17, ubuntu-24.04)	4m 23s
Java Slow Tests (JDK 17, ubuntu-24.04-arm)	4m 25s
Java Slow Tests (JDK 17, windows-latest)	4m 13s
Java Slow Tests (JDK 17, macos-latest)	4m 25s
Java Slow Tests (JDK 21, ubuntu-24.04)	4m 24s
Java Slow Tests (JDK 21, ubuntu-24.04-arm)	4m 23s
Java Slow Tests (JDK 21, windows-latest)	4m 13s
Java Slow Tests (JDK 21, macos-latest)	4m 24s
Java Slow Tests (JDK 23, ubuntu-24.04)	4m 24s
Java Slow Tests (JDK 23, ubuntu-24.04-arm)	4m 22s
Java Slow Tests (JDK 23, windows-latest)	4m 14s
Java Slow Tests (JDK 23, macos-latest)	4m 24s
	1h 8m 47s

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