Add optional timeout params to produce methods:
Add optional timeout params to produce methods:

produce and produceBatch

Thee values are currently ignored; using them is coming next ;)
gprabhat90/phpkafka,EVODelavega/phpkafka,gprabhat90/phpkafka,gprabhat90/phpkafka,EVODelavega/phpkafka,EVODelavega/phpkafka