Multibatch posteriori + generate data from projected dynamics

[SCiarella]

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 93.75000% with 8 lines in your changes missing coverage. Please review.

Project coverage is 48.40%. Comparing base (57e49a6) to head (2f2ff58).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
ext/NavierStokes/utils.jl	91.48%	4 Missing ⚠️
src/loss/loss_posteriori.jl	80.00%	4 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #176       +/-   ##
===========================================
+ Coverage   35.31%   48.40%   +13.09%     
===========================================
  Files          15       16        +1     
  Lines         572      628       +56     
===========================================
+ Hits          202      304      +102     
+ Misses        370      324       -46     

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