Add warn on logger options with a custom logger
Add warn on logger options with a custom logger

When a custom logger is setup, option like `verbose`, `log_file` and
`log_stdout` will not have any effect.

Signed-off-by: chatgris <f9469d12bf3d131e7aae80be27ccfe58aa9db1f1@af83.com>

blockbridge/goliath