Traits for getting length base 10 as usize

This crate offers such traits as [GetLenBase10AsUsize], [GetLenBase10AsUsizeViaRepeatedMultiplicationBy10], [GetLenBase10AsUsizeViaStringConversion], [MaxLenBase10AsUsize], and [TryEstimateLenBase10AsClosedUsizeIntvlViaFPLogarithm].

Example

```rust use getlenbase10as_usize::MaxLenBase10AsUsize;

asserteq!(u64::MAXLENBASE10ASUSIZE, 20); ```

Sources of insipration

License

^{Licensed under either of Apache License, Version
2.0 or MIT license at your option.}

_{Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in this crate by you, as defined in the Apache-2.0 license, shall
be dual licensed as above, without any additional terms or conditions.}

https://www.baeldung.com/java-number-of-digits-in-int