Various changes in Locallab GUI

- Modified some Locallab tool default parameters
- Updates some labels
- Expanders visibility state is now kept when using history
- New added tool has now its visibily state resetted to default one
- Code cleanup

rtgui/toolpanelcoord.cc

@@ -629,6 +629,9 @@ void ToolPanelCoordinator::profileChange(
 
         if (event == rtengine::EvPhotoLoaded || event == rtengine::EvProfileChanged) {
             toolPanel->autoOpenCurve();
+
+            // For Locallab, reset tool expanders visibility only when a photo or profile is loaded
+            locallab->openAllTools();
         }
     }
 
@@ -1206,4 +1209,4 @@ bool ToolPanelCoordinator::getFilmNegativeExponents(rtengine::Coord spotA, rteng
 bool ToolPanelCoordinator::getRawSpotValues(rtengine::Coord spot, int spotSize, std::array<float, 3>& rawValues)
 {
     return ipc && ipc->getRawSpotValues(spot.x, spot.y, spotSize, rawValues);
-}
+}