Setup app (#541)

- Implement Setup app for device's first boot
- Implement device simple name and vendor name variables
- Remove region setting (locale setting is already available)

Tactility/Include/Tactility/settings/SystemSettings.h

@@ -8,7 +8,6 @@ struct SystemSettings {
     Language language;
     bool timeFormat24h;
     std::string dateFormat;  // MM/DD/YYYY, DD/MM/YYYY, YYYY-MM-DD, YYYY/MM/DD
-    std::string region;      // (US, EU, JP, etc.)
 };
 
 bool loadSystemSettings(SystemSettings& properties);

Tactility/Include/Tactility/settings/Time.h

@@ -16,6 +16,9 @@ void setTimeZone(const std::string& name, const std::string& code);
  */
 std::string getTimeZoneName();
 
+/** @return true when a timezone has been explicitly set (as opposed to the default) */
+bool hasTimeZone();
+
 /**
  * Get the code of the timezone (see timezones.csv)
  */