Verify correct behaviour of benchmarks

[SlowMo24]

Benchmark b2 has different checksums for Ignite and H2 (see db-1 postgres server benchmark results). This may point to an error in the code we should investigate.

[SlowMo24]

solved in https://gitlab.gistools.geog.uni-heidelberg.de/giscience/big-data/ohsome/oshdb-benchmarks/commit/c2c0e9743db591d0cc7341dd73933b50d9840f10

Could someone with better ignit-knowledge please verify the .xml: https://gitlab.gistools.geog.uni-heidelberg.de/giscience/big-data/ohsome/oshdb-benchmarks/blob/master/src/main/resources/benchmark-ignite-config.xml @rtroilo @joker234

Import is now rather slow maybe this can be tweaked?

[SlowMo24]

Also H2 is now faster on some benchmarks than ignite: https://reports.ohsome.org/oshdb-benchmarks/0.1-SNAPSHOT_master/123_254b6bf/BenchmarkReports/ignite-benchmark.html https://reports.ohsome.org/oshdb-benchmarks/0.1-SNAPSHOT_master/123_254b6bf/BenchmarkReports/h2-benchmark.html