Fix
First readme
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Modelbuilder-0020 for Processing 1.5.1

Examples require ControlP5 v0.5.4.
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Added ProcessingData
Added ProcessingData
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Added LoadSaveJSON exampe
First version of ModelbuilderMk2
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Added: STL export, file name utilities (UFile)
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Added ModelbuilderMk2 todo, misc
Incremental - renamed UBasic, add UBB, UEdge
New export, minor fixes

UFile fixed, added some NODUPL/NOCOPY handling in UVertexList
Added UTriangulate class + fixes
Minor fix in UNav3D
Added screenshots of examples