[WIP] Aerosol Coagulation

[nefrathenrici]

Purpose

This PR implements coagulation via quadrature and approximation, closing #91 .

Part of the larger Aerosol Model Issue

To-do

There are a few things to do.

• Expand testing, including:
• Comparisons between the quadrature and Whitby approximation for the coagulation integrals.
• plots of modal distribution change across timesteps.
• Eventually remove Whitby approximation, since we will not include it in the final project.

Content

• Moment-based integrals for calculating coagulation rates within and between aerosol distributions, as specified by MAM3.
• Further information can be found in the documentation.

---

• I have read and checked the items on the review checklist.

Closes #91

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -23.24 ⚠️

Comparison is base (5376eab) 97.20% compared to head (8dca58e) 73.97%.

Additional details and impacted files

@@             Coverage Diff             @@
##             main      #92       +/-   ##
===========================================
- Coverage   97.20%   73.97%   -23.24%     
===========================================
  Files           9       11        +2     
  Lines         430      634      +204     
===========================================
+ Hits          418      469       +51     
- Misses         12      165      +153     

Impacted Files	Coverage Δ
src/AerosolModel.jl	100.00% <ø> (ø)
src/CoagCorrectionFactors.jl	0.00% <0.00%> (ø)
src/Coagulation.jl	0.00% <0.00%> (ø)
src/Common.jl	100.00% <0.00%> (ø)
src/Parameters.jl	53.84% <0.00%> (ø)
src/CommonTypes.jl	100.00% <0.00%> (ø)
src/Microphysics1M.jl	100.00% <0.00%> (ø)
src/Microphysics2M.jl	100.00% <0.00%> (ø)

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[nefrathenrici]

@trontrytel I think this can be closed...