Implemented colmesh field exchangers (faces, edges, nodes)

[pbtoast]

Fixes #329

[codecov[bot]]

Codecov Report

Merging #339 into master will increase coverage by 0.27%. The diff coverage is 96.37%.

@@            Coverage Diff             @@
##           master     #339      +/-   ##
==========================================
+ Coverage   80.39%   80.66%   +0.27%     
==========================================
  Files         244      244              
  Lines       37575    38207     +632     
==========================================
+ Hits        30207    30821     +614     
- Misses       7368     7386      +18

Impacted Files	Coverage Δ
geometry/colmesh.h	81.81% <100%> (+6.81%)	:arrow_up:
geometry/polymesh.c	91.86% <100%> (+0.14%)	:arrow_up:
core/polymec.c	64.5% <100%> (+0.17%)	:arrow_up:
geometry/tests/test_colmesh_field.c	98.96% <100%> (+2.75%)	:arrow_up:
geometry/colmesh_field.c	81.97% <33.33%> (-0.87%)	:arrow_down:
geometry/colmesh.c	94.74% <95.29%> (+0.52%)	:arrow_up:

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[codecov[bot]]

Codecov Report

Merging #339 into master will increase coverage by 0.27%. The diff coverage is 96.39%.

@@            Coverage Diff             @@
##           master     #339      +/-   ##
==========================================
+ Coverage   80.39%   80.67%   +0.27%     
==========================================
  Files         244      244              
  Lines       37575    38211     +636     
==========================================
+ Hits        30207    30825     +618     
- Misses       7368     7386      +18

Impacted Files	Coverage Δ
geometry/colmesh.h	81.81% <100%> (+6.81%)	:arrow_up:
geometry/polymesh.c	91.86% <100%> (+0.14%)	:arrow_up:
core/polymec.c	64.5% <100%> (+0.17%)	:arrow_up:
geometry/tests/test_colmesh_field.c	98.96% <100%> (+2.75%)	:arrow_up:
geometry/colmesh_field.c	81.97% <33.33%> (-0.87%)	:arrow_down:
geometry/colmesh.c	94.76% <95.33%> (+0.54%)	: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 7fdec12...9dc06da. Read the comment docs.