Analytical overhaul

[MaceKuailv]

This is going to replace PR #56. This PR is going to break down the lagrangian particle code in more logical way and test it.

Also solve some small issues.

[codecov]

Codecov Report

Patch coverage: 96.24% and project coverage change: +1.76 🎉

Comparison is base (427b255) 92.81% compared to head (7bb3283) 94.57%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #58      +/-   ##
==========================================
+ Coverage   92.81%   94.57%   +1.76%     
==========================================
  Files          11       11              
  Lines        2629     2638       +9     
  Branches      720      708      -12     
==========================================
+ Hits         2440     2495      +55     
+ Misses         85       53      -32     
+ Partials      104       90      -14     

Impacted Files	Coverage Δ
seaduck/topology.py	88.13% <57.14%> (+0.84%)	⬆️
seaduck/utils.py	95.81% <91.66%> (+2.52%)	⬆️
seaduck/ocedata.py	96.65% <92.85%> (+4.98%)	⬆️
seaduck/lagrangian.py	95.38% <96.27%> (-0.33%)	⬇️
seaduck/smart_read.py	97.87% <97.82%> (+2.63%)	⬆️
seaduck/eulerian.py	94.81% <100.00%> (+0.85%)	⬆️
seaduck/get_masks.py	96.26% <100.00%> (+16.84%)	⬆️
seaduck/kernel_weight.py	95.16% <100.00%> (ø)
seaduck/oceinterp.py	98.64% <100.00%> (+4.53%)	⬆️

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[MaceKuailv]

This PR has been way too long. Although this has not yet accomplish what I hope to finish in this one PR, let's merge it and see if this PR would automatically resolve the issue that is really troubling me issue #55 .

That said, it had accomplished quite a lot.
#45 is resolved.
#17 is 85% resolved. Except for smart_read, every module has good coverage, and every test has with pytest.warns/raises or assert.
#50 is resolved. All weird aliases removed.
#22 is resolved. I made the decision to silence all runtime warnings. I know what they are.