PKG_AYT_X, Check that the "Packages" package is installed

rst $08, defw $020f


IN:	-
OUT:	Fc=0, "Packages" is installed
	Fc=1, "Packages" is not available

Registers changed after return:
  A.BCDEHL/IXIY same
  .F....../.... different


Notes:
	This call is not useful as it cannot ever cause the "Packages"
	package to be reinstalled
