Log Message:
(cad/gtkwave) Updated 3.3.100 to 3.3.101

3.3.101 08may19 Added gtkwave::getFacDir, gtkwave::getFacVtype, and
                gtkwave::getFacDtype Tcl accessor functions that function
                similar to gtkwave::getFacName.
                Pair $end with $dumpvars in VCD writers.
                Make %.16g printing in baseconvert.c more resistant to power
                of 10 roundoff errors.
                Remove register keyword where applicable as is deprecated.
                Added --saveonexit gtkwave command line option.