Formatting, minor UI tweaks

* minor renamings in simulator selector
* simplified namespaces

Ref T246

src/blackgui/components/simulatorselector.h

@@ -64,7 +64,10 @@ namespace BlackGui
             void setToLastSelection();
 
             //! Set all, only making sense with checkboxes
-            void setAll();
+            void checkAll();
+
+            //! Unset all, only making sense with checkboxes
+            void uncheckAll();
 
             //! Not selected at all
             bool isUnselected() const;
@@ -78,6 +81,9 @@ namespace BlackGui
             //! Remember selection
             void setRememberSelection(bool remember) { m_rememberSelection = remember; }
 
+            //! Clear values
+            void clear();
+
         signals:
             //! Value has been changed
             void changed(const BlackMisc::Simulation::CSimulatorInfo &simulator);