add the timeutils package

Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)
use custom marshalling for JSONLog

Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)
Merge pull request #8041 from unclejack/lower_allocations_broadcastwriter

lower the number of allocations in broadcastwriter