added more view extensions

Signed-off-by: Matt Bruce <matt.bruce@verizon.com>

VDS/Extensions/UIView.swift

@@ -176,10 +176,66 @@ extension UIView {
 
 extension CALayer {
     func remove(layerName: String) {
-        sublayers?.forEach({ layer in
+        guard let sublayers = sublayers else {
+            return
+        }
+        
+        sublayers.forEach({ layer in
             if layer.name?.hasPrefix(layerName) ?? false {
                 layer.removeFromSuperlayer()
             }
         })
     }
 }
+
+
+extension UIView {
+    
+    public func addBorder(side: UIRectEdge, width: CGFloat, color: UIColor) {
+        let layerName = borderLayerName(for: side)
+        layer.remove(layerName: layerName)
+        
+        let borderLayer = CALayer()
+        borderLayer.backgroundColor = color.cgColor
+        borderLayer.name = layerName
+        
+        switch side {
+        case .left:
+            borderLayer.frame = CGRect(x: 0, y: 0, width: width, height: frame.height)
+        case .right:
+            borderLayer.frame = CGRect(x: frame.width - width, y: 0, width: width, height: frame.height)
+        case .top:
+            borderLayer.frame = CGRect(x: 0, y: 0, width: frame.width, height: width)
+        case .bottom:
+            borderLayer.frame = CGRect(x: 0, y: frame.height - width, width: frame.width, height: width)
+        default:
+            break
+        }
+       
+        layer.addSublayer(borderLayer)
+    }
+   
+    public func removeBorders() {
+        layer.borderWidth = 0
+        layer.borderColor = nil
+        layer.remove(layerName: borderLayerName(for: .top))
+        layer.remove(layerName: borderLayerName(for: .left))
+        layer.remove(layerName: borderLayerName(for: .right))
+        layer.remove(layerName: borderLayerName(for: .bottom))
+    }
+    
+    private func borderLayerName(for side: UIRectEdge) -> String {
+        switch side {
+        case .left:
+            return "leftBorderLayer"
+        case .right:
+            return "rightBorderLayer"
+        case .top:
+            return "topBorderLayer"
+        case .bottom:
+            return "bottomBorderLayer"
+        default:
+            return ""
+        }
+    }
+}