RoomerSettings now parses through a special-formatted text file, instead of an XML files to reduce overhead
New test file for new settings file
Updates to support new special-formatted settings files
New IO test room files; updated TwoRooms.xml to have a startingroom
Added isStartingRoom element
RoomIO: Added IOErrCode codes; added body to IsValidRoomsFiles
Fixed test rooms to not have multiple errors
Very basic settings file with some test lines
Room validation now through XDocument
RoomerManger now calls RoomIO.IsValidRoomsFile
RoomIO proj: Program.cs now asks for a rooms file path; some project cleanup