Added wrapping up and down functionality for load game window. Fix bug allowing the player to enter no name for a save file name, resulting in file load parsing failing completely. Remove back button in class selection window.
saveFileWindow->ADD("Save File Name Entry Label",MenuLabel)(geom2d::rect<float>{{-8,0},{112,36}},"Save File Name:",1.0f,ComponentAttr::SHADOW)END;
saveFileWindow->ADD("Save File Name Text Entry",TextEntryLabel)(geom2d::rect<float>{{-8,36},{112,24}},TEXTCHANGE_DONOTHING,false,16U,2.f,ComponentAttr::FIT_TO_LABEL|ComponentAttr::OUTLINE|ComponentAttr::SHADOW|ComponentAttr::BACKGROUND)END;
saveFileWindow->ADD("Save File Name Text Entry",TextEntryLabel)(geom2d::rect<float>{{-8,36},{112,24}},[](std::string_viewupdatedLabel){