Made password visibility toggleable

ui/BankingAndroidApp/src/main/res/layout/dialog_add_account.xml

@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:orientation="vertical"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
@@ -37,6 +39,7 @@
         android:id="@+id/edtxtPassword"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        app:showPasswordToggle="true"
         android:hint="@string/online_banking_credentials_password"
         android:inputType="textPassword"
         />

ui/BankingAndroidApp/src/main/res/layout/dialog_bank_settings.xml

@@ -82,6 +82,7 @@
                     android:id="@+id/edtxtPassword"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
+                    app:showPasswordToggle="true"
                     android:hint="@string/online_banking_credentials_password"
                     android:inputType="textPassword"
                     />

ui/BankingAndroidApp/src/main/res/values/attrs.xml

@@ -16,6 +16,7 @@
         <attr name="android:hint" />
         <attr name="android:inputType" />
         <attr name="android:selectAllOnFocus" />
+        <attr name="showPasswordToggle" format="boolean"/>
 
     </declare-styleable>