[Kotlin] [Feature] OkHttpClient - replacing static client usage with client Injection

Created by: tihonovgn

Is your feature request related to a problem? Please describe.

I need to use different interceptors for different api clients in a project. In the current implementation, I can only add an interceptor through the static field ApiClient.builder. In this case, all clients use the same interceptors.

@JvmStatic val builder: OkHttpClient.Builder = OkHttpClient.Builder()

Describe the solution you'd like

It would be nice to be able to inject your own instance of the OkHttpClient class into the API client constructor.

class V1Api(basePath: kotlin.String = defaultBasePath, client: OkHttpClient = ApiClient.defaultClient) : ApiClient(basePath) {

fun getOrdersClient(): V3Api {
    val builder = OkHttpClient.Builder()
    builder.addInterceptor(
        dbLoggerInterceptor
    )
    return V3Api(baseURL, builder.build())
}

fun getPickupsClient(): V3Api {
    val builder = OkHttpClient.Builder()
    builder.addInterceptor(
        kibanaLoggerInterceptor
    )

    return V3Api(baseURL, builder.build())
}

@jimschubert @dr4ke616 @karismann @Zomzog @andrewemery @4brunu @yutaka0m