refactor(runtime,codegen): avoid double timestamps problem

[iulianbarbu]

Description of change

Rebased on top of #1209.

• Runtime resource tracker emit logs prepended by a timestamp we add explicitly. This was removed.
• Our default tracing fmt layer formats events by prepending a timestamp, but we also emit the timestamp for each line from the runtime stdout collecting logic. I changed the default tracing layer to format events without a timestamp.

Note:

• users custom tracing is not touched and if they emit timestamps they will pop up in the deployment logs. I think this should be expected behavior and leave the users the choice to format their logs as wanted.

How has this been tested? (if applicable)

Tested locally:

• with the default tracing
• without the default tracing

[chesedo]

Seems good to go. Just need to remove the changes from #1209

[chesedo]

LGTM