Path: Change filenames in the rest of the Path code

Reflects changes in 
* PathOpGui.SetupOperation()
* GetResources()
* sPIxmap
* pixmap
* *.UI files

Also contains minor translation context renames (these were edits made near to original intent of this commit)

src/Mod/Path/Gui/ViewProviderPathShape.cpp

@@ -39,7 +39,7 @@ PROPERTY_SOURCE(PathGui::ViewProviderPathShape, PathGui::ViewProviderPath)
 
 QIcon ViewProviderPathShape::getIcon() const
 {
-    return Gui::BitmapFactory().pixmap("Path-Shape");
+    return Gui::BitmapFactory().pixmap("Path_Shape");
 }
 
 std::vector<App::DocumentObject*> ViewProviderPathShape::claimChildren(void) const