[Woo POS] Modularization: refactor `WaitingTimeTracker` to remove `Analytics` dependency and move it to WooFoundation#16169

jaclync merged 2 commits intotrunkwoocommerce/woocommerce-ios:trunkfrom

feat/WOOMOB-935-refactor-WaitingTimeTracker-and-move-to-WooFoundationwoocommerce/woocommerce-ios:feat/WOOMOB-935-refactor-WaitingTimeTracker-and-move-to-WooFoundationCopy head branch name to clipboard