Fix bugs :

- [x] 346098 : Uninitialized scalar field (parser/PajeParser/ParserDefinitionPaje.cpp)
- [x] 346100 : Uninitialized pointer field (trace/Entity.cpp)
- [x] 346101 : Uninitialized scalar field (render/GanttDiagram.hpp)
- [] 346102 : Uninitialized scalar field (render/opengl/Render_opengl.cpp)
- [x] 346103 : Uninitialized pointer field (plugin/Plugin.hpp)
- [x] 346106 : Dereference before null check (trace/Trace.cpp)
- [x] 346110 : Uninitialized scalar field (render/Geometry.cpp)
- [] 346113 : Dereference after null check (parser/Pajeparser/ParserEventPaje.cpp ) //not a real error
- [x] 352437 : Explicit null dereferenced (interface/Node_select.cpp)
- [x] 352438 : Explicit null dereferenced (common/Session.cpp)

Signed-off-by: CANNAROZZO Luigi <lcannarozzo@enseirb-matmeca.fr>