add demo ofxVoronoi
Merge branch 'master' of https://github.com/hiroMTB/3s1e

Conflicts:
	demo/ofxVoronoi/ofxVoronoi.xcodeproj/project.pbxproj

demo/ofxVoronoi/ofxVoronoi.xcodeproj/project.xcworkspace/xcshareddata/of
xVoronoi.xccheckout