perf_hooks: performance milestone time origin timestamp improvement
local benchmark:
confidence improvement accuracy (*) (**) (***)
perf_hooks/time-origin.js method='timeOrigin' n=1000000 *** 75.84 % ±1.07% ±1.44% ±1.91%
perf_hooks/time-origin.js method='toJSON' n=1000000 *** 27.41 % ±1.24% ±1.66% ±2.16%