Improved performance of SlicesIterator (15%)

[jorgecarleitao]

Some code simplification (10%) and inlining (5%).

bitmap slices 2^10      time:   [3.3655 us 3.3766 us 3.3875 us]                                
                        change: [-15.754% -15.343% -14.973%] (p = 0.00 < 0.05)

bitmap slices 2^20      time:   [3.3802 ms 3.3890 ms 3.3976 ms]                                
                        change: [-15.120% -14.776% -14.451%] (p = 0.00 < 0.05)

[codecov]

Codecov Report

Merging #824 (05d7ad9) into main (1dd1b19) will decrease coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #824      +/-   ##
==========================================
- Coverage   71.63%   71.60%   -0.03%     
==========================================
  Files         326      326              
  Lines       17523    17514       -9     
==========================================
- Hits        12552    12541      -11     
- Misses       4971     4973       +2     

Impacted Files	Coverage Δ
src/bitmap/utils/slice_iterator.rs	87.93% <100.00%> (-4.61%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 1dd1b19...05d7ad9. Read the comment docs.