Sketcher: Improvement: Continuous Mode - View sketch Perpendicular

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It allows the view sketch perpendicular button to be active during continuous mode creation (and if activated does not exit the continuous mode).

Feature requested:
http://forum.freecadweb.org/viewtopic.php?f=10&t=11051&start=30#p92256

src/Mod/Sketcher/Gui/Command.cpp

@@ -467,7 +467,7 @@ bool CmdSketcherViewSketch::isActive(void)
     if (doc) {
         // checks if a Sketch Viewprovider is in Edit and is in no special mode
         SketcherGui::ViewProviderSketch* vp = dynamic_cast<SketcherGui::ViewProviderSketch*>(doc->getInEdit());
-        if (vp && vp->getSketchMode() == ViewProviderSketch::STATUS_NONE)
+        if (vp /*&& vp->getSketchMode() == ViewProviderSketch::STATUS_NONE*/)
             return true;
     }
     return false;