expose multi-query in StringIndex #288

Job	Run time
Lint Java	16s
Lint C++	25s
Test with Java 11 on ubuntu-latest	3m 34s
Build JAR with on ubuntu-latest	3m 45s
Test with Java 17 on ubuntu-latest	3m 25s
Test with Java 11 on windows-latest	3m 58s
Test with Java ${{ matrix.java-version }} + Address Sanitizer	0s
Test with Java 17 on windows-latest	4m 46s
Build JAR with on windows-latest	5m 10s
Test with Python 3.8 on ubuntu-latest	2m 56s
Test with Java 11 on macos-12	2m 50s
Build JAR with on macos-12	3m 29s
Test with Python 3.8 on windows-latest	5m 11s
Test with Java 17 on macos-12	3m 58s
Test with Python 3.8 on macos-12	4m 10s
Test with Python 3.8 + Address Sanitizer	3m 15s
Combine JARs	1s
Upload to Maven Central	1s
Build wheel for ${{ matrix.build }}	1s
Upload wheels to PyPI	1s
	51m 12s

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