Update handling of submit buttons on iOS keyboards

[ctrevarthen]

In order to close an iOS keyboard/submit a form field, we rely on the keyboard toolbar to exist and have a button labeled "Done" (or some variant). This won't always be the case, so we need a more robust way of closing the iOS keyboard.

We can use the following:

import com.kms.katalon.core.mobile.keyword.internal.MobileDriverFactory
import io.appium.java_client.ios.IOSDriver
import io.appium.java_client.remote.HideKeyboardStrategy

IOSDriver<?> driver = MobileDriverFactory.getDriver()
driver.hideKeyboard(HideKeyboardStrategy.PRESS_KEY, "Search")

Where we replace the text of the "Search" key with whatever the keyboard's "Enter" button is. NOTE: This could probably be an enum since iOS has a limited number of words you can use for the standard keyboard enter key.