Make string timestamps interactive.

Screencast: https://screencast.googleplex.com/cast/NTA0NjEyMTg2MzgzOTc0NHw2NGI2YWYyMC02OA

Changes made in:
- transitions send time and dispatch time (dispatch time added to table as this is what it used to set timestamps of transitions).
- protolog log timestamp
- transactions log timestamp

Fixes: 301920476
Test: npm run test:unit:ci

Change-Id: Ie85ed349758fa8ede6d3d34006f9766ca0f4b4ad