Enyo 360 Support 'Persian calendar'

Issue
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Currently moon.Calendar only support gregorian calendar.
However fa-IR (Iran) and fa-AF (Afghanistan) use Persian calendar instead of Gregorian.
 
Fix
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Implement following requirements
Moonstone widget Persian calendar shall need to be in sync with the opinion from Iran local office
: (Abbreviated) localized strings for the days of the week and month
: Starting from Saturday
: Right to left (Saturday at the rightmost, Friday at the leftmost)

Enyo-DCO-1.1-Signed-off-by: David Um david.um@lge.com
enyo.updateI18NClasses should be called when the locale is changed externally to the app when handling the locale changed signal. This localeChanged handler should be called only when the locale has already changed and that function has already been called. Is it not being called in that situation?