Fix bug #6427629 Clean up layout direction APIs

- getLayoutDirection() / getTextDirection() / getTextAligment() dont do resolution
- resolution done into onMeasure()
- use XX_RESOLVED bits to check if resolution needs to be done
- code formatting

Change-Id: Ie46a5535860e90f3449b96cfe0aa04dd7e3006d7

Author: Fabrice Di Meglio