Changes:
- Added: WriteSplitter
- Added: WriteCustomLine
- Added AskForStringBasedValueObject
- Added AskForTimeSpan
- Added extension filter for AskFor(XX)FileName
- Fixes FileSystemQuestionIntellisense
- AskForItems return value from IReadOnlyCollection to IReadOnlyList
- Default OnIdleKeyPressFlushOutEverySeconds increased from 10 to 100
- Bump dependencies