add convenience extension function

[dtanner]

fun <T> T.withEnvOverrides(prefix: String, defaults: (T.() -> Unit)? = null): T {
    val config = this

    defaults?.invoke(config)
    return EnvConfigLoader.overrideFromEnvironment(config, prefix)
}

sample usage:

val metricsConfig = MetricsConfig().withEnvOverrides("METRICS")
bind(MetricsConfig::class.java).toInstance(metricsConfig)