* the DrawnList structure (used by FloodFill) is now dynamically allocated
  before a FloodFill and freed afterwards, so it doesn't waste memory, while
  not in use



git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25729 3ad0048d-3df7-0310-abae-a5850022a9f2