Add showShadow param for start sequence

Author: dungPhamAlo

Sources/MaterialShowcase/MaterialShowcase.swift

@@ -216,7 +216,7 @@ extension MaterialShowcase {
   }
 
   /// Shows it over current screen after completing setup process
-  @objc public func show(animated: Bool = true,hasShadow: Bool = true, hasSkipButton: Bool = false, completion handler: (()-> Void)?) {
+  @objc public func show(animated: Bool = true, hasShadow: Bool = true, hasSkipButton: Bool = false, completion handler: (()-> Void)?) {
     initViews()
     alpha = 0.0
     containerView.addSubview(self)

Sources/MaterialShowcase/MaterialShowcaseSequence.swift

@@ -20,11 +20,11 @@ public class MaterialShowcaseSequence {
     showcaseArray.append(showcase)
     return self
   }
-  public func start() {
+  public func start(hasShadow: Bool = true) {
     guard !getUserState(key: self.key) else {
       return
     }
-    showcaseArray.first?.show(completion: increase)
+      showcaseArray.first?.show(hasShadow: hasShadow, completion: increase)
   }
   func increase() -> Void {
     self.currentCase += 1