RFR: 8077587: BigInteger Roots [v74]

[fabioromano1]

> This PR implements nth root computation for BigIntegers using Newton method.

fabioromano1 has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 120 commits:

 - Merge branch 'openjdk:master' into nth-root-branch
 - Ensure root's overestimate in for loop
 - Refine comment
 - Refine comment
 - Refine comments
 - Refine comments
 - An optimization
 - Code simplification
 - Removed dead code
 - Merge branch 'openjdk:master' into nth-root-branch
 - ... and 110 more: https://git.openjdk.org/jdk/compare/993babb3...d5ff3a65

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Changes: https://git.openjdk.org/jdk/pull/24898/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24898&range=73
  Stats: 451 lines in 3 files changed: 448 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/24898.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24898/head:pull/24898

PR: https://git.openjdk.org/jdk/pull/24898