Get rid of trivial anonymous functions (part 1)

[lgoettgens]

(Splitting this up to try to prevent too many conflicts.

This should increase compilation times, in particular re-compilation.

The problem of anonymous functions is that each one of them has its own type. If we now pass it to a function (or even worse, to a parameterized type), all functions below have to get re-compiled for this new type.
This PR only touches really trivial cases, where readability of the code should still be similar as before.

[codecov]

Codecov Report

Attention: Patch coverage is 82.55814% with 15 lines in your changes missing coverage. Please review.

Project coverage is 84.67%. Comparing base (2dc5df5) to head (da244d9).
Report is 5 commits behind head on master.

Files with missing lines	Patch %	Lines
...xperimental/FTheoryTools/src/TateModels/methods.jl	40.00%	3 Missing ⚠️
...leAndHyperComplexes/src/Objects/total_complexes.jl	33.33%	2 Missing ⚠️
experimental/GModule/src/GaloisCohomology.jl	33.33%	2 Missing ⚠️
.../FTheoryTools/src/LiteratureModels/create_index.jl	0.00%	1 Missing ⚠️
experimental/FTheoryTools/src/auxiliary.jl	80.00%	1 Missing ⚠️
experimental/GaloisGrp/src/Solve.jl	0.00%	1 Missing ⚠️
experimental/LieAlgebras/src/LieAlgebra.jl	0.00%	1 Missing ⚠️
experimental/ModStd/src/ModStdNF.jl	0.00%	1 Missing ⚠️
experimental/OrthogonalDiscriminants/src/data.jl	0.00%	1 Missing ⚠️
.../QuadFormAndIsom/src/hermitian_miranda_morrison.jl	0.00%	1 Missing ⚠️
... and 1 more

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4126   +/-   ##
=======================================
  Coverage   84.67%   84.67%           
=======================================
  Files         626      625    -1     
  Lines       84249    84256    +7     
=======================================
+ Hits        71340    71347    +7     
  Misses      12909    12909           

Files with missing lines	Coverage Δ
...l/AlgebraicStatistics/src/PhylogeneticAuxiliary.jl	77.77% <100.00%> (ø)
...braicStatistics/src/PhylogeneticParametrization.jl	96.80% <100.00%> (ø)
...ental/DoubleAndHyperComplexes/src/Morphisms/ext.jl	97.57% <100.00%> (ø)
...eAndHyperComplexes/src/Morphisms/linear_strands.jl	95.23% <100.00%> (ø)
...perComplexes/src/Morphisms/simplified_complexes.jl	94.61% <100.00%> (ø)
...ental/DoubleAndHyperComplexes/src/Objects/Types.jl	72.12% <100.00%> (ø)
.../FTheoryTools/src/AbstractFTheoryModels/methods.jl	78.27% <100.00%> (ø)
...tal/FTheoryTools/src/HypersurfaceModels/methods.jl	100.00% <100.00%> (ø)
.../FTheoryTools/src/LiteratureModels/constructors.jl	93.81% <100.00%> (ø)
...mental/FTheoryTools/src/TateModels/constructors.jl	97.46% <100.00%> (ø)
... and 37 more

... and 4 files with indirect coverage changes