[integer] Refine normalization of BigUInt division so that correction is no longer needed

[forfudan]

This pull request focuses on optimizing arithmetic operations for BigUInt in the decimojo library. The changes primarily involve replacing hardcoded constants (e.g., 1_000_000_000) with the BigUInt.BASE and BigUInt.BASE_MAX properties, introducing in-place scaling methods, and improving normalization logic for division operations. These updates enhance code maintainability, readability, and performance.

Division improvements:

• Enhanced normalization logic in floor_divide by introducing a table-based lookup for determining the number of digits to shift, improving quotient estimation accuracy. ([src/decimojo/biguint/arithmetics.mojoL931-R1037](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL931-R1037))
• Although no correction is expected to occur, still kept the correction attempts counter in floor_divide_general to prevent infinite loops during quotient estimation. ([src/decimojo/biguint/arithmetics.mojoL991-R1098](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL991-R1098))

Updates to scaling methods:

• Replaced scale_up_by_power_of_10 and scale_up_by_power_of_billion with their in-place equivalents (scale_up_inplace_by_power_of_10 and scale_up_inplace_by_power_of_billion) across multiple functions, reducing redundant object creation. ([[1]](https://github.com/forfudan/decimojo/pull/100/files#diff-f79534f4e7fdd891932ce9d015c50bd3c8a72c4a1689f0cb55524490ffc0458dL281-R281), [[2]](https://github.com/forfudan/decimojo/pull/100/files#diff-f79534f4e7fdd891932ce9d015c50bd3c8a72c4a1689f0cb55524490ffc0458dL385-R385), [[3]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL621-R621), [[4]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL640-R640), [[5]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL700-R701), [[6]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL807-R880), [[7]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL991-R1098))

Transition to BigUInt.BASE and BigUInt.BASE_MAX:

• Replaced hardcoded constants 1_000_000_000 and 999_999_999 with BigUInt.BASE and BigUInt.BASE_MAX in arithmetic operations (e.g., addition, subtraction, multiplication, division) to improve flexibility and reduce magic numbers. ([[1]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL204-R205), [[2]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL231-R236), [[3]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL260-R261), [[4]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL274-R274), [[5]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL330-R330), [[6]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL372-R372), [[7]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL531-R532), [[8]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL728-L735), [[9]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL782-R863), [[10]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL916-R986), [[11]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL1063-R1176), [[12]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL1090-R1185), [[13]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL1111-R1206), [[14]](https://github.com/forfudan/decimojo/pull/100/files#diff-95a5c66e5957fff2a2a8a2710ffb11a4ad7d0bddaf3bc11d075d62ddaa8b915cL1136-R1231))