Patches SetRGB32() to use LoadRGB32().
On AGA systems LoadRGB32() is faster than SetRGB32().

WWW: http://cs.joensuu.fi/~jpinola/miu/miu.html

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  179     320  55.9% -lh5- 3a29 Jan  8  1999 SetRGB32P.readme
[generic]                 7507   11588  64.8% -lh5- 0df5 Jan  8  1999 SetRGB32Patch
[generic]                 1273    2438  52.2% -lh5- 2966 Jan  8  1999 SetRGB32Patch.txt
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         3 files    8959   14346  62.4%            Jan  9  1999