CB-7972 Add cordova-plugin-globalization support for Windows platform

Added Windows platform support
Moved and refactored wp8 implementation to common code
Updated documentation including more accurate definition of wp8 methods quirks

[JIRA issue](https://issues.apache.org/jira/browse/CB-7972)
As Jesse correctly stated:
> It looks like it's just to generate names of days, using a known month/year which starts on a Sunday by the looks of it. 

We are taking 2014 June 1st and a week forward starting with Sunday to generate the weekdays.
The day week starts on actually can be different and it is defined in getFirstDayOfWeek method.