ENYO-1724: Subtract container padding from fit control width of Fittable in RTL locale
ENYO-1724: Subtract container padding from fit control width of Fittable in RTL locale

Issue:
- In RTL locale, fit control width is larget than expected when
  container has padding.
- Because, fittable is not consider container padding in RTL locale.

Fix:
- Now we consider container padding in RTL locale just like LTR.

Signed-off-by: Kunmyon Choi <3510e15fb820b511597698c69f7aab7153d9a537@lge.com>

enyojs/layout