Rust

More flexibility on numerical/string doc id and quantization #107

Job	Run time
Check for warnings	15s
Lint with Clippy	22s
Verify code formatting	8s
Test on ubuntu-latest and beta	31s
Test on ubuntu-latest and stable	27s
Test on windows-latest and nightly	1m 5s
Test on windows-latest and stable	1m 15s
Test on ubuntu-latest and nightly	30s
Test on windows-latest and beta	1m 6s
Run code coverage	17s
Check intra-doc links	23s
Miri test	1m 22s
	7m 41s

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