FACES-1895 & FACES-1897

FACES-1895 Develop alloy:pickDate component (Overloaded getLocale() method to take FacesContext argument. Moved PickDateUtil.determineLocale() usage from PickDateRenderer to PickDate.getLocale() to be consistent with other getters (e.g. getters provide default values).)
FACES-1897 Develop alloy:inputDate component (Overloaded getLocale() method to take FacesContext argument. Moved PickDateUtil.determineLocale() usage to InputDate.getLocale() to be consistent with other getters (e.g. getters provide default values).)