BUG: fixed reference leak when SWIG passing tuples or lists
BUG: fixed reference leak when SWIG passing tuples or lists

Fixes #2705.  Calls to PySequence_GetItem have been updated in pyBase.i to decrement the reference count correctly.

InsightSoftwareConsortium/ITK,hjmjohnson/ITK,vfonov/ITK,vfonov/ITK,hjmjohnson/ITK,thewtex/ITK,richardbeare/ITK,BRAINSia/ITK,vfonov/ITK,Kitware/ITK,InsightSoftwareConsortium/ITK,hjmjohnson/ITK,thewtex/ITK,BRAINSia/ITK,Kitware/ITK,hjmjohnson/ITK,richardbeare/ITK,hjmjohnson/ITK,vfonov/ITK,InsightSoftwareConsortium/ITK,Kitware/ITK,richardbeare/ITK,InsightSoftwareConsortium/ITK,Kitware/ITK,InsightSoftwareConsortium/ITK,vfonov/ITK,thewtex/ITK,vfonov/ITK,richardbeare/ITK,BRAINSia/ITK,Kitware/ITK,hjmjohnson/ITK,vfonov/ITK,InsightSoftwareConsortium/ITK,BRAINSia/ITK,thewtex/ITK,thewtex/ITK,richardbeare/ITK,thewtex/ITK,vfonov/ITK,InsightSoftwareConsortium/ITK,Kitware/ITK,vfonov/ITK,BRAINSia/ITK,BRAINSia/ITK,thewtex/ITK,BRAINSia/ITK,richardbeare/ITK,richardbeare/ITK,Kitware/ITK,hjmjohnson/ITK