#370,#372, #373, #374, #376 Refactoring of SettingsViewModel class

#370 - Adding ordinal suffix to each new document's name
#373 - Adding en_GB language support to Spell Checker
#374 - Adding de_DE language support to Spell Checker
Refactoring of SettingsViewModel class
#376 - Adding tr language support to Spell Checker
#372 - Argument Null Exception in Open From Web window