Adjust tab styling

- Pass separator bars to tabs, disable drawn borders
- Remove ActionBar from leftnav
- Remove PrintProgressBar from leftnav
- Revise BreadCrumb button attributes
- Revise UpFolder icon
- Revise overflow/pancake menu icon
- Create OverflowButton to encapsulate common menu item
- Use horizontal/VerticalLine for consistent color/weight separators
- Reduce visual clutter
  - Minimize regions created by color and line separators
  - Reduce the contrast of separator lines
  - Reduce the contrast of region backgrounds
  - Use consistent background colors across sibling tab pages

CustomWidgets/LibrarySelector/FolderBreadCrumbWidget.cs

@@ -46,7 +46,8 @@ namespace MatterHackers.MatterControl.CustomWidgets
 			pressedTextColor = ActiveTheme.Instance.PrimaryTextColor,
 			disabledTextColor = ActiveTheme.Instance.PrimaryTextColor,
 			Margin = new BorderDouble(10, 0),
-			borderWidth = 0
+			borderWidth = 0,
+			FixedHeight = 30
 		};
 
 		public FolderBreadCrumbWidget(ListView listView)
@@ -80,7 +81,7 @@ namespace MatterHackers.MatterControl.CustomWidgets
 
 			Button upbutton = navigationButtonFactory.Generate("", icon);
 			upbutton.Name = "Library Up Button";
-			upbutton.Margin = new BorderDouble(3, 0, 3, 0);
+			upbutton.Margin = 0;
 			upbutton.Click += (s, e) =>
 			{
 				if (listView.ActiveContainer.Parent != null)
@@ -88,6 +89,7 @@ namespace MatterHackers.MatterControl.CustomWidgets
 					UiThread.RunOnIdle(() => listView.LoadContainer(listView.ActiveContainer.Parent));
 				}
 			};
+
 			this.AddChild(upbutton);
 
 			bool firstItem = true;