Image: refactoring of MeshToImageEngine  : 	- handle multiple ROIs for each mesh 	- removed mesh closing (must be done by MeshClosingEngine) 	- filling with different colors using 'insideValue' data
Image: refactoring of MeshToImageEngine  :
	- handle multiple ROIs for each mesh
	- removed mesh closing (must be done by MeshClosingEngine)
	- filling with different colors using 'insideValue' data

Former-commit-id: 182d59e08bcf98674c06880ac638d46764e0d39b
hdeling/sofa,hdeling/sofa,FabienPean/sofa,Anatoscope/sofa,Anatoscope/sofa,FabienPean/sofa,Anatoscope/sofa,FabienPean/sofa,hdeling/sofa,hdeling/sofa,Anatoscope/sofa,FabienPean/sofa,hdeling/sofa,hdeling/sofa,hdeling/sofa,FabienPean/sofa,FabienPean/sofa,hdeling/sofa,hdeling/sofa,FabienPean/sofa,Anatoscope/sofa,FabienPean/sofa,FabienPean/sofa,Anatoscope/sofa,FabienPean/sofa,Anatoscope/sofa,hdeling/sofa,Anatoscope/sofa,Anatoscope/sofa