Include eigen_algebra_dispatcher in odeint helper

[Psirus]

This will allow declaring steppers without supplying the vector_space_algebra template parameter.

I really wish I hadn't merged the old one so quickly...

[codecov[bot]]

Codecov Report

Merging #249 into PDE_reviewed will not change coverage. The diff coverage is 100%.

@@              Coverage Diff              @@
##           PDE_reviewed     #249   +/-   ##
=============================================
  Coverage         84.41%   84.41%           
=============================================
  Files               296      296           
  Lines             10860    10860           
=============================================
  Hits               9168     9168           
  Misses             1692     1692

Flag	Coverage Δ
#integrationtests	62.02% <100%> (ø)	:arrow_up:
#unittests	87.69% <ø> (ø)	:arrow_up:

Impacted Files	Coverage Δ
nuto/math/EigenOdeintCompatibility.h	0% <ø> (ø)	:arrow_up:
...tions/integrationtests/math/HarmonicOscillator.cpp	100% <100%> (ø)	:arrow_up:

---

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 d895d43...e50fc48. Read the comment docs.