Tree component functions

[jingchengx]

No description provided.

[codecov]

Codecov Report

Merging #145 into master will increase coverage by 0.16%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #145      +/-   ##
==========================================
+ Coverage   84.58%   84.74%   +0.16%     
==========================================
  Files          28       28              
  Lines       10768    10842      +74     
==========================================
+ Hits         9108     9188      +80     
+ Misses       1660     1654       -6     

Impacted Files	Coverage Δ
src/PhyloNetworks.jl	100.00% <ø> (ø)
src/graph_components.jl	100.00% <100.00%> (ø)
src/phyLiNCoptimization.jl	94.77% <0.00%> (+0.72%)	⬆️
src/types.jl	82.25% <0.00%> (+1.61%)	⬆️

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[coveralls]

Coverage increased (+0.2%) to 84.745% when pulling c63b881 on jokeitei:tree-component into 6889e0a on crsl4:master.