feat(interpolation): clean code

[purewater0901]

Signed-off-by: yutaka purewater0901@gmail.com

Description

Use interpolation utils to check the size of base keys and base values for zoh interpolation.

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[codecov]

Codecov Report

Merging #1766 (fb46bc2) into main (fd0d776) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main    #1766   +/-   ##
=======================================
  Coverage   10.38%   10.38%           
=======================================
  Files        1211     1211           
  Lines       87406    87413    +7     
  Branches    20282    20288    +6     
=======================================
+ Hits         9075     9081    +6     
  Misses      68849    68849           
- Partials     9482     9483    +1     

Flag	Coverage Δ		*Carryforward flag
differential	11.51% <100.00%> (?)
total	10.36% <ø> (ø)		Carriedforward from fd0d776

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
...polation/include/interpolation/zero_order_hold.hpp	58.33% <100.00%> (+11.27%)	⬆️

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