Zmesh

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* release(1.6.0): removed dependency on BOOST
* refactor/install: remove Boost as dependency (37)

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* release(1.5.0): major performance enhancement to MC and simplify
* fix: remove other unnecessary always inline
* fix: remove always\_inline as it doesn't seem necessary for perf
* build: bump windows to c++17
* test: only check simplified meshes on macos
* perf+refactor: faster and cleaner marching cubes implementation
* test: remove F order simplify test
* test: add simplification test
* refactor: switch \_faces back to unordered\_map
* install: move macro declaration in front of cpp files
* perf: use robin\_hood flat hash map to improve simplification (33)
* perf: remove seemingly unnecessary check (32)
* docs: how much does simplification save?
* feat(Mesh): add nbytes property
* feat: add simplification benchmark
* docs: discuss why data.T

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* fix: simplification works on larger meshes (31)

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* release(1.4.1): misspelled variable name
* fix: misspelled variable
* redesign: shrink unordered\_map when clearing data
* build: fix incorrect tox parameter

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* release(1.4.0): both C and F order are fast in marching cubes
* perf: marching cubes works at full speed on both C and F order arrays (29)
* refactor: rename and remove some variables
* refactor: std::size\_t -> size\_t
* fix: silence additional annoying warnings
* fix: silence several annoying compile time warnings
* refactor: remove vert loops (28)

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* release(1.3.0): even faster marching cubes
* docs: update perf numbers in comment
* test: add scikit image in very rough comparison to zmesh
* perf: much faster marching cubes (27)
* chore: also exclude test image data from source dist
* chore: add MANIFEST.in to exclude test files