* Added CultureInfo (CA1307: Specify StringComparison for clarity / CA1304: Specify CultureInfo)
* Check arguments and throw ArgumentNullException (CA1062: Validate arguments of public methods)
* Changed url parameter from string to System.Uri and added null checks (CA1054: URI parameters should not be strings)
* Rethrow exception without specifying the exception explicitly (CA2200: Rethrow to preserve stack details)
* Changed from Collection property to methods for PluginMetadata::ActionKeywords (CA2227: Collection properties should be read only)
* Changed from Collection property to methods for Result::GetTitleHighlightData (CA2227: Collection properties should be read only)
* Made Collection property read-only and added parameter in constructor for Result::SubTitleHighlightData (CA2227: Collection properties should be read only)
* Made Collection property read only and added parameter in constructor for ResultUpdatedEventArgs::Results (CA2227: Collection properties should be read only)
* CA1507: Use nameof in place of string
* Removed initialization for ThemeManager::_disposed (CA1805: Do not initialize unnecessarily)
* Changed Query::Terms array property to ReadOnlyCollection and added private set (CA1819: Properties should not return arrays)
* CA1060: Move P/Invokes to NativeMethods class
* CA1806: Do not ignore method results
* CA2101: Specify marshaling for P/Invoke string arguments
* Removed unnecessary empty interface IFeatures (CA1040: Avoid empty interfaces)
- Removed IFeatures interface and references
- Renamed IFeatures.cs to IContextMenu.cs according to guidelines
* Added comments for CultureInfo (CA1307: Specify StringComparison for clarity / CA1304: Specify CultureInfo)
* Added localization for Wox.Plugin and localized strings in FilesFolders.cs
