Updated gitignore & gitattributes

.gitattributes

.gitignore

app/Widgets/OperationBar.cpp

app/Widgets/OperationBar.h

core/ImgOutput.cpp

core/ImgOutput.h

core/ImgParam.cpp

core/ImgParam.h

core/ImgWidget.h

core/Input.h

core/IntParam.cpp

core/IntParam.h

core/Operation.cpp

core/Operation.h

core/Output.h

core/Parameter.h

core/Plugin.cpp

core/Plugin.h

plugins/Segmentation/segmentation.cpp

plugins/plugin.cpp