Code Factory Vocalizer v.3.1.8.

NEWS:
- New Vocalizer engine 3.2.1 version and new voices:
- Ukrainian voice, Lesya
- Argentinian voice, Isabella
- Arabic voice, Mariam
- UK English voice, Stephanie
- Spanish Colombia voice, Ximena
- Updates for: English US, English India, Hindi and Korean
- Target to Android P:
- Runtime permission applies and require user's approval to use the app, user dictionaries,...
- Code refactoring and fixes.
- Added new emoji's for English, flags, emoji from Unicode 10 and Unicode 11.