* contrib/hbwin/win_reg.prg
* contrib/hbwin/tests/test_reg.prg
* added nRegSam (access mask) parameter into functions: win_regRead,
win_regWrite, win_regGet, win_regDelete, win_regQuery, win_regSet.
This parameter can be used in win32 applications, running under
win64 systems for access to 32-bit or 64-bit registry.