C++ improvements #445

Job	Run time
Lint Java	11s
Build JAR with on ubuntu-latest	1m 4s
Lint C++	18s
Build JAR with on windows-latest	50s
Run benchmarks on ubuntu-latest	1m 0s
Build JAR with on macos-12	52s
Test C++ on ubuntu-latest	50s
Test C++ on macos-12	21s
Test with Java 11 on ubuntu-latest	1m 3s
Test with Java ${{ matrix.java-version }} + Address Sanitizer	0s
Test with Python 3.8 on ubuntu-latest	59s
Test with Java 17 on ubuntu-latest	1m 2s
Test with Python 3.8 on windows-latest	49s
Test with Java 11 on windows-latest	1m 11s
Test with Python 3.8 + Address Sanitizer	1m 0s
Test with Python 3.8 on macos-12	1m 2s
Test with Java 17 on windows-latest	49s
Test with Java 11 on macos-12	47s
Test with Java 17 on macos-12	1m 2s
Build wheel for ${{ matrix.build }}	1s
Combine JARs	1s
Upload wheels to PyPI	1s
Upload to Maven Central	1s
	15m 14s

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