restrict bin count based on numeric precision on kll floats sketch

[jamie256]

Description

Addresses #518 by reducing the bin count if the width of the bins is lower than rounding of the values.

This is a mitigation for the conversion of profile to summary which uses a default bin count that doesn't work in some cases. We still could use some follow up to better track larger integers not well captured by the floats sketch.

General Checklist

• Tests added for this feature/bug
  if it was a bug, test must cover it.
• Conform by the style guides, by using formatter
• Documentation updated
• (optional) Please add a label to your PR

[coveralls]

Pull Request Test Coverage Report for Build 2111352590

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 23 of 23 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.05%) to 82.661%

---

Totals
Change from base Build 2110893254:	0.05%
Covered Lines:	4962
Relevant Lines:	5838

---

💛 - Coveralls

[andyndang]

LGTM