Special-case filter single array record batch in filter_record_batch

[Dandandan]

Gives a speed up for single-column batches.

Closes #234

filter single record batch                                                                            
                        time:   [229.93 us 231.52 us 233.29 us]
                        change: [-54.913% -54.501% -54.106%] (p = 0.00 < 0.05)
                        Performance has improved.
Found 7 outliers among 100 measurements (7.00%)
  4 (4.00%) high mild
  3 (3.00%) high severe

[jorgecarleitao]

Looks great 👍

[codecov]

Codecov Report

Merging #235 (5001c88) into main (95fe10a) will decrease coverage by 0.01%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #235      +/-   ##
==========================================
- Coverage   76.83%   76.82%   -0.02%     
==========================================
  Files         229      229              
  Lines       19582    19586       +4     
==========================================
  Hits        15046    15046              
- Misses       4536     4540       +4     

Impacted Files	Coverage Δ
src/compute/filter.rs	63.19% <0.00%> (-1.59%)	⬇️

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[Dandandan]

Nice! About a 2x improvement for f32 values