Add currentDebounceStrategy to mock controllers

Update mocks to conform to PointOfSaleSearchingItemsControllerProtocol
which now requires currentDebounceStrategy property.

Author: joshheald

Modules/Tests/PointOfSaleTests/Mocks/MockPointOfSaleCouponsController.swift

@@ -1,4 +1,5 @@
 @testable import PointOfSale
+import Yosemite
 
 final class MockPointOfSaleCouponsController: PointOfSaleCouponsControllerProtocol {
     var loadItemsCalled = false
@@ -7,6 +8,8 @@ final class MockPointOfSaleCouponsController: PointOfSaleCouponsControllerProtoc
     var itemsViewState: ItemsViewState = .init(containerState: .content,
                                                itemsStack: .init(root: .empty, itemStates: [:]))
 
+    var currentDebounceStrategy: SearchDebounceStrategy = .immediate
+
     func loadItems(base: ItemListBaseItem) async {
         loadItemsCalled = true
         loadItemsBase = base

Modules/Tests/PointOfSaleTests/Mocks/MockPointOfSalePurchasableItemsSearchController.swift

@@ -2,11 +2,14 @@ import Foundation
 import Combine
 @testable import PointOfSale
 import enum Yosemite.POSItem
+import Yosemite
 
 final class MockPointOfSalePurchasableItemsSearchController: PointOfSaleSearchingItemsControllerProtocol {
     var itemsViewState: ItemsViewState = .init(containerState: .content,
                                                itemsStack: .init(root: .empty, itemStates: [:]))
 
+    var currentDebounceStrategy: SearchDebounceStrategy = .immediate
+
     func searchItems(searchTerm: String, baseItem: ItemListBaseItem) async {}
 
     func loadItems(base: ItemListBaseItem) async { }