better component/parameter names to match panel naming

sed -i 's/top_plate/panel/g' *.scad
sed -i 's/plate_to_frame/panel_to_frame/g' *.scad

Signed-off-by: Brian S. Stephan <bss@incorporeal.org>

src/top-panel-overhang-right-sega-2p-plus-one.scad

@@ -8,7 +8,7 @@ include <components.scad>
 
 module top_panel_right_sega_2p_plus_one() {
 	difference() {
-		top_plate_with_raised_overhang();
+		panel_with_raised_overhang();
 		sega_2p_plus_one();
 		rotate([0, 0, 180]) side_chopper();
 	}