auditlog-echo: A tool to view MinIO Audit logs on the console

1. Run the tool with:

go run docs/auditlog/auditlog-echo.go

The listen port has a default value (8080), but can be set with the -port flag.

2. Configure audit logging in MinIO with for example:

mc admin config set myminio audit_webhook enable=on endpoint=http://localhost:8080

3. Make any requests to MinIO and see audit logs printed to the tool's console.