Fix a bunch more issues with sheetpaths and allowExtraText.

A sheetpath is required to correctly resolve text variables.
Depending on currentSheet is rife with bugs.

There are many places where we do *not* want to be prepending
field names to the field values, such as netlisting,
building PDF hypertext menus, etc.

Also, Find/Replace needs to work on unresolved text, as
that's what we're going to display (and if replace nuked
your variable references you wouldn't be happy).

(cherry picked from commit b41d446f58)

common/plotters/common_plot_functions.cpp

@@ -139,10 +139,10 @@ void PlotDrawingSheet( PLOTTER* plotter, const PROJECT* aProject, const TITLE_BL
 
             int penWidth = std::max( text->GetEffectiveTextPenWidth(), defaultPenWidth );
 
-            plotter->Text( text->GetTextPos(), color, text->GetShownText(), text->GetTextAngle(),
-                           text->GetTextSize(), text->GetHorizJustify(), text->GetVertJustify(),
-                           penWidth, text->IsItalic(), text->IsBold(), text->IsMultilineAllowed(),
-                           font );
+            plotter->Text( text->GetTextPos(), color, text->GetShownText( true ),
+                           text->GetTextAngle(), text->GetTextSize(), text->GetHorizJustify(),
+                           text->GetVertJustify(), penWidth, text->IsItalic(), text->IsBold(),
+                           text->IsMultilineAllowed(), font );
         }
             break;