[TIMOB-27869] Android: KEYBOARD_TYPE_ASCII should not allow emoji like iOS

*Summary:* On iOS, KEYBOARD_TYPE_ASCII allows the end-user to enter all characters (including non-English letters) except emoji. On Android, this keyboard type accepts all characters. It should be changed to filter out emoji characters for parity with iOS. If you want a keyboard that accepts all characters, then use KEYBOARD_TYPE_DEFAULT instead. *Use-Case:* You would normally use KEYBOARD_TYPE_ASCII for login/user name entry. Emoji characters are not typically appropriate for this type of input. *Test Code:*

var window = Ti.UI.createWindow();
window.add(Ti.UI.createTextField({
	keyboardType: Ti.UI.KEYBOARD_TYPE_ASCII,
	width: "90%",
}));
window.open();