Updated files...see notes-------------------------------------------> Added class member accessors,setf functions and print-* functions for KEY-POINT, DMATCH, RECT, POINT*,  and ROTATED-RECT. removed SIZE-2F type and related functions. Fixed errors in examples. Added MAT-ELEMENT and redid the MAT dispatch function.  Fixed GC errors in VECTOR-* and MAT-* functions by adding GCED-FOREIGN-ALLOC function(the functions that use the unless macro).