/* $DOC$
   $NAME$
      ft_BitSet()
   $CATEGORY$
      String
   $ONELINER$
      Set selected bit in a byte
   $SYNTAX$
      ft_BitSet( <cByte>, <nBitPos> ) -> cByte
   $ARGUMENTS$
      <cByte> is a character from hb_BChar( 0 ) to hb_BChar( 255 ).

      <nBitPos> is a number from 0 to 7 conforming to standard right-to-left
      bit numbering convention and representing the position of the bit
      within the byte.
   $RETURNS$
      Returns new byte, with designated bit set.  If parameters are faulty,
      returns NIL.
   $DESCRIPTION$
      In effect, ORs argument byte with a byte that has only the target bit
      set.  If bit is already set, it remains set.
      Note: Calls ft_IsBit() which is also in this Library.

      This function is presented to illustrate that bit-wise operations
      are possible with Clipper code.  For greater speed, write .c or
      .asm versions and use the Clipper Extend system.
   $EXAMPLES$
      // This code would set bit 4 in a byte represented by hb_BChar( 107 ):

      cNewbyte := ft_BitSet( hb_BChar( 107 ), 4 )
      ? hb_BCode( cNewbyte )        // result: 123
      ? cNewbyte                    // result: "{"


      // This code would set bit 5 in the byte represented by the letter "A".

      ? ft_BitSet( "A", 5 )         // result: "a"
                                    // bit 5 set
   $SEEALSO$
      ft_BitClr(), ft_IsBit()
   $END$
 */