Fix and test manifold approxDeconv

[Affie]

close #1374

Note: only for measurements as tangent vectors

[codecov]

Codecov Report

Merging #1380 (4275fad) into master (e8a6110) will increase coverage by 0.08%.
The diff coverage is 94.11%.

@@            Coverage Diff             @@
##           master    #1380      +/-   ##
==========================================
+ Coverage   76.39%   76.48%   +0.08%     
==========================================
  Files          67       67              
  Lines        4906     4920      +14     
==========================================
+ Hits         3748     3763      +15     
+ Misses       1158     1157       -1     

Impacted Files	Coverage Δ
src/NumericalCalculations.jl	92.70% <92.85%> (+0.02%)	⬆️
src/DeconvUtils.jl	62.50% <100.00%> (+4.16%)	⬆️
src/services/CalcFactor.jl	91.91% <100.00%> (ø)

---

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 e8a6110...4275fad. Read the comment docs.

[dehann]

Note: only for measurements as tangent vectors

thanks @Affie , i added a link to requirements: https://github.com/JuliaRobotics/Caesar.jl/wiki/High-Level-Requirements