Refactor Plug-In Interface

[Eronan]

• Create Interface for Plug-In Services such as Import/Export
• Create Interface for Deck Builder Services such as Validating Add/Validating Deck
• Create Interface for CardList Services such as Get Information.
• Create Interface for Downloading Services.

Interfaces to create:

• Import and Exportable Plug-In.
• Remove Import/Export List from Game.
• Remove ICard & IAlternateArt from Plug-In Interface.
• Move DeckBuilderCardArt into Plug-In.

[Eronan]

• Create Interface for Plug-In Services such as Import/Export: Attached to the Game Plug-In still
• Create Interface for Deck Builder Services such as Validating Add/Validating Deck: IDeckBuilderServices Interface Implemented with Default
• Create Interface for CardList Services such as Get Information: Unnecessary, created by the Individual Plug-Ins to suit their own needs
• Create Interface for Downloading Services: Created and attached to IGamePlugIn

Interfaces to create:

• Import and Exportable Plug-In.
• Remove Import/Export List from Game: Not Possible, as they need to be Defined to be retrieved
• Remove ICard & IAlternateArt from Plug-In Interface.
• Move DeckBuilderCardArt into Plug-In.