* harbour/include/hbset.h
* harbour/source/vm/set.c
+ added hb_setSetItem2() C function for SETs which needs two parameters
+ added support for HB_SET_DECIMALS and HB_SET_EPOCH in hb_setSetItem()
Still 22 SETs are marked as TODO
+ added internal function hb_setSetFile() for HB_SET_ALTFILE,
HB_SET_EXTRAFILE, HB_SET_PRINTFILE - function body marked as TODO.
I'll implement it later.