open: better logging

[oharboe]

log_cmd accounts for pretty much all time to open a desig now

All but 10 seconds accounted for by log_cmd:

OpenROAD v2.0-20670-g4939290b5 
Features included (+) or not (-): +GPU +GUI +Python
This program is licensed under the BSD-3 license. See the LICENSE file for details.
Components of this program may be licensed under more restrictive licenses which must be honored.
read_db results/asap7/BoomTile/base/5_1_grt.odb
Took 8 seconds: read_db results/asap7/BoomTile/base/5_1_grt.odb
GUI_TIMING=1 reading timing, takes a little while for large designs...
read_sdc /home/oyvind/OpenROAD-flow-scripts/foo/results/asap7/BoomTile/base/5_1_grt.sdc
Took 10 seconds: read_sdc /home/oyvind/OpenROAD-flow-scripts/foo/results/asap7/BoomTile/base/5_1_grt.sdc
grt::have_routes
Took 48 seconds: grt::have_routes
No global routing results available, skipping estimate_parasitics
Load .//reports/asap7/BoomTile/base/congestion.rpt for details
find_timing_paths
Took 71 seconds: find_timing_paths

real	2m27,613s
user	2m23,664s
sys	0m3,944s

[maliberty]

Conflicts with my uplevel change

[oharboe]

Conflicts with my uplevel change

A quick attempt at merge, let us see if CI agrees.

[oharboe]

@maliberty unrelated CI error