A structure holding an array of cursors from a single Windows Executable cursor group.
Windows lumps different versions of the same cursors/icons together and decides which one to use based on the screen's color depth and resolution. For instance, one cursor group could hold a 1bpp 16x16 cursorand a 8bpp 16x16 cursor. This will hold all cursors in the group. This class should be used to actually parse the cursors, whereas WinCursor is just the representation used by this struct to store the cursors.