Convert Wallet models to Kotlin (#1589)

stripe/src/main/java/com/stripe/android/model/wallets/AmexExpressCheckoutWallet.kt

@@ -0,0 +1,34 @@
+package com.stripe.android.model.wallets
+
+import android.os.Parcel
+import android.os.Parcelable
+
+class AmexExpressCheckoutWallet : Wallet {
+    private constructor(builder: Builder) : super(Type.AmexExpressCheckout, builder)
+
+    private constructor(parcel: Parcel) : super(parcel)
+
+    internal class Builder : Wallet.Builder<AmexExpressCheckoutWallet>() {
+        override fun build(): AmexExpressCheckoutWallet {
+            return AmexExpressCheckoutWallet(this)
+        }
+    }
+
+    companion object {
+        internal fun fromJson(): Builder {
+            return Builder()
+        }
+
+        @JvmField
+        val CREATOR: Parcelable.Creator<AmexExpressCheckoutWallet> =
+            object : Parcelable.Creator<AmexExpressCheckoutWallet> {
+                override fun createFromParcel(parcel: Parcel): AmexExpressCheckoutWallet {
+                    return AmexExpressCheckoutWallet(parcel)
+                }
+
+                override fun newArray(size: Int): Array<AmexExpressCheckoutWallet?> {
+                    return arrayOfNulls(size)
+                }
+            }
+    }
+}

stripe/src/main/java/com/stripe/android/model/wallets/ApplePayWallet.kt

@@ -0,0 +1,34 @@
+package com.stripe.android.model.wallets
+
+import android.os.Parcel
+import android.os.Parcelable
+
+class ApplePayWallet : Wallet {
+    private constructor(builder: Builder) : super(Type.ApplePay, builder)
+
+    private constructor(parcel: Parcel) : super(parcel)
+
+    internal class Builder : Wallet.Builder<ApplePayWallet>() {
+        override fun build(): ApplePayWallet {
+            return ApplePayWallet(this)
+        }
+    }
+
+    companion object {
+        internal fun fromJson(): Builder {
+            return Builder()
+        }
+
+        @JvmField
+        val CREATOR: Parcelable.Creator<ApplePayWallet> =
+            object : Parcelable.Creator<ApplePayWallet> {
+                override fun createFromParcel(parcel: Parcel): ApplePayWallet {
+                    return ApplePayWallet(parcel)
+                }
+
+                override fun newArray(size: Int): Array<ApplePayWallet?> {
+                    return arrayOfNulls(size)
+                }
+            }
+    }
+}

stripe/src/main/java/com/stripe/android/model/wallets/GooglePayWallet.kt

@@ -0,0 +1,34 @@
+package com.stripe.android.model.wallets
+
+import android.os.Parcel
+import android.os.Parcelable
+
+class GooglePayWallet : Wallet {
+    private constructor(builder: Builder) : super(Type.GooglePay, builder)
+
+    private constructor(parcel: Parcel) : super(parcel)
+
+    internal class Builder : Wallet.Builder<GooglePayWallet>() {
+        override fun build(): GooglePayWallet {
+            return GooglePayWallet(this)
+        }
+    }
+
+    companion object {
+        internal fun fromJson(): Builder {
+            return Builder()
+        }
+
+        @JvmField
+        val CREATOR: Parcelable.Creator<GooglePayWallet> =
+            object : Parcelable.Creator<GooglePayWallet> {
+                override fun createFromParcel(parcel: Parcel): GooglePayWallet {
+                    return GooglePayWallet(parcel)
+                }
+
+                override fun newArray(size: Int): Array<GooglePayWallet?> {
+                    return arrayOfNulls(size)
+                }
+            }
+    }
+}