PKG_INF, Return static information on the "Packages" package

rst $08, defw $000f


IN:	-
OUT:	Fc=0, success
	BHL=pointer to null-terminated package name
	C=version of package-handling required
	DE=package version code

Registers changed after return:
  ......../IXIY same
  AFBCDEHL/.... different


Notes:

