Add XML Documentation

[Krusen]

Models

• Board/IBoard
• Pin/IPin
• User/IUser
• RateLimits/IRateLimits
• Counts/IBoardCounts/IPinCounts/IUserCounts
• ImageInfo/IBoardImageList/IPinImageList/IUserImageList

Exceptions

• PinSharpException
• PinSharpAuthorizationException
• PinSharpBadRequestException
• PinSharpForbiddenException
• PinSharpNotFoundException
• PinSharpRateLimitExceededException
• PinSharpServerErrorException
• PinSharpTimeoutException

API

• PinSharpClient
• PinSharpAuthClient
• IBoardsApi
• IMeApi
• IPinsApi
• IUsersApi
• PagedResponse<T>
• IHttpClient

Other

• InterfaceConverter<T>