Update FantasyFootball file structure and create additional DLLs
Small update so PlayerTableView

Now that FFCore is a separate library we can finally add a player to a
row.
Applied namespaces to projects
Replaced tab sort with combo box sort

Removed player position tabs for a more convenient drop down box to sort
the players in a table view
General framework additions

- Added LeagueRules which can be applied for scoring and building
rosters.
Roster updates

- Team now supports rosters
- rosters now support adding benchplayers
- Roster/LeagueRules code cleanup