Implement weighted Delaunay triangulations and power diagrams

[DanielVandH]

TODO:

• Implement weighted Delaunay triangulations
• Implement power diagrams
• Add triangle_orthocenter to public
• Add tutorial example for power diagrams
• Add math details for power diagrams and orthocenters
• Look into implementing treemaps
• Fix clipping
• Fix smoothing
• Add generic convex polygon clipping
• Add example showing clipping to a generic convex polygon
• Add examples to README

[codecov]

Codecov Report

Attention: Patch coverage is 82.83379% with 63 lines in your changes missing coverage. Please review.

Project coverage is 95.00%. Comparing base (e88077b) to head (426b2a5).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/algorithms/voronoi/clipped.jl	72.24%	58 Missing ⚠️
src/data_structures/voronoi.jl	50.00%	2 Missing ⚠️
...orithms/triangulation/constrained_triangulation.jl	50.00%	1 Missing ⚠️
src/utils/utils.jl	75.00%	1 Missing ⚠️
src/validation.jl	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #180      +/-   ##
==========================================
+ Coverage   94.77%   95.00%   +0.23%     
==========================================
  Files          95       95              
  Lines        9839    10112     +273     
==========================================
+ Hits         9325     9607     +282     
+ Misses        514      505       -9     

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