add .gitignore
add .gitignore

InsightSoftwareConsortium/ITKMinimalPathExtraction,thewtex/ITKMinimalPathExtraction,KitwareMedical/ITKMinimalPathExtraction,thewtex/ITKMinimalPathExtraction,KitwareMedical/ITKMinimalPathExtraction,InsightSoftwareConsortium/ITKMinimalPathExtraction,thewtex/ITKMinimalPathExtraction,InsightSoftwareConsortium/ITKMinimalPathExtraction