test canonical Boxes2D!, re-add Beehive w small test

[dehann]

new beehive was a great idea from @Affie!

[codecov]

Codecov Report

Merging #452 (4df2617) into master (cf2157a) will decrease coverage by 28.98%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #452       +/-   ##
==========================================
- Coverage   29.09%   0.10%   -28.99%     
==========================================
  Files          51      52        +1     
  Lines        1863    1857        -6     
==========================================
- Hits          542       2      -540     
- Misses       1321    1855      +534     

Impacted Files	Coverage Δ
src/Deprecated.jl	0.00% <ø> (-5.27%)	⬇️
src/RoME.jl	100.00% <ø> (ø)
src/canonical/GenerateBeehive.jl	0.00% <0.00%> (ø)
src/canonical/GenerateCommon.jl	0.00% <0.00%> (-63.89%)	⬇️
src/canonical/GenerateHoneycomb.jl	0.00% <ø> (-92.43%)	⬇️
src/factors/Pose2D.jl	0.00% <0.00%> (-100.00%)	⬇️
src/SpecialDefinitions.jl	0.00% <0.00%> (-100.00%)	⬇️
src/canonical/GenerateHelix.jl	0.00% <0.00%> (-100.00%)	⬇️
src/factors/BearingRange2D.jl	0.00% <0.00%> (-96.00%)	⬇️
src/factors/VelPose2D.jl	0.00% <0.00%> (-95.24%)	⬇️
... and 27 more

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