Including support for TLS/SSL

NetworkModule.kt

 @Singleton
    @Provides
    fun provideOkhttpClient(authInterceptor: AuthInterceptor,
                            certificateHelper: CertificateHelper
                           ) :OkHttpClient{
        val trustManagers = certificateHelper.createTrustManagers()
        val sslContext = SSLContext.getInstance("TLS")
        sslContext.init(null, trustManagers, null)
        return OkHttpClient().newBuilder()
            .readTimeout(2, TimeUnit.MINUTES)
            .writeTimeout(2, TimeUnit.MINUTES)
            .connectTimeout(2, TimeUnit.MINUTES)
            .addInterceptor(authInterceptor)
            .addInterceptor(loggingInterceptor)
            .sslSocketFactory(sslContext.socketFactory, 
                              trustManagers[0] as X509TrustManager)
            .build()
    }