transport: mute errors when too verbose

[lspgn]

This adds two CLI arguments that will by default reduce the amount of logs if there is an issue (transport like kafka logs or decoder templates).

Arguments:

• err.int: interval to log errors
• err.cnt: threshold of errors per interval

If the threshold of errors during an interval is crossed, subsequent errors will be muted until the interval clears.

One of the common case is when Kafka is down:

ERRO[0043] transport error                               error="kafka transport kafka: Failed to produce message to topic flow-messages: circuit breaker is open"
WARN[0043] too many transport errors, muting
WARN[0052] skipped 85 transport errors
ERRO[0052] transport error                               error="kafka transport kafka: Failed to produce message to topic flow-messages: circuit breaker is open"
ERRO[0052] transport error                               error="kafka transport kafka: Failed to produce message to topic flow-messages: circuit breaker is open"
ERRO[0052] transport error                               error="kafka transport kafka: Failed to produce message to topic flow-messages: circuit breaker is open"

Will require updating #199

[lspgn]

Idea: add "skipped x error messages" when counter is reset