Updated behavior of round operator in ProcessingChain

[iguinn]

round now takes two optional arguments

• to_nearest: instead of rounding to nearest integer, round to nearest arbitrary value (including units and coordinate systems). This enables the use of unitted quantities in rounding (if to_nearest has the same unit).
• dtype: control dtype of output

round is now also capable of working on processing chain variables. For coordinate-like variables (like timepoints) the recommended usage is round(tp, wf.grid), which will make the internal buffer for the timepoint fall on integer multiples of the coordinate space; this is optimal for any processor that expects integer values.

[codecov]

Codecov Report

Attention: 8 lines in your changes are missing coverage. Please review.

Comparison is base (c11ee13) 61.69% compared to head (976aeca) 61.81%.

Files	Patch %	Lines
src/dspeed/processing_chain.py	69.23%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #23      +/-   ##
==========================================
+ Coverage   61.69%   61.81%   +0.11%     
==========================================
  Files          40       40              
  Lines        2684     2705      +21     
==========================================
+ Hits         1656     1672      +16     
- Misses       1028     1033       +5     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.