log4shib 2.0.0

### - f -

- fatal() : log4shib::Category
- fatalStream() : log4shib::Category
- FileAppender() : log4shib::FileAppender
- Filter() : log4shib::Filter
- FixedContextCategory() : log4shib::FixedContextCategory
- flush() : log4shib::CategoryStream
- format() : log4shib::BasicLayout, log4shib::Layout, log4shib::PatternLayout, log4shib::SimpleLayout
- FormatModifierComponent() : log4shib::FormatModifierComponent
- freeHolder() : log4shib::threading::ThreadLocalDataHolder< T >