Allow log: Env(LOG_STREST)

[jgroom33]

This would be good to support global logging on/off
log: Env(LOG_STREST)

^ fails schema

[eykrehbein]

What do you mean by that exactly?

[adiman9]

I believe what is meant is that log currently only accepts a boolean in the schema and it has to be set manually per request in the yaml. It would be good if we could use the Env() operator to use an environment variable to globally turn on / off logging for all requests without having to change the yaml.

[eykrehbein]

It was basically already integrated but I forgot that the Joi pattern blocked the use of a string. But this was fixed for the log param in #53 👍