title: How to find beacon major and minor number using RxBle
body: <p>I'm having trouble finding the major and minor number of a bluetooth beacon using RxBle. Any help would be appreciated. I've tried this</p>
  
  <pre><code>rxBleClient = ProxiApplication.getRxBleClient(this)
      scanDisposable = rxBleClient.scanBleDevices(
              ScanSettings.Builder()
                      .setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY)
                      .setCallbackType(ScanSettings.CALLBACK_TYPE_ALL_MATCHES)
                      .build(),
              ScanFilter.Builder()
                      .build()
      ).observeOn(AndroidSchedulers.mainThread())
              .doFinally(this::dispose)
              .subscribe({
                  Log.v("MainActivity", "scan results: ${it}"]
              }, {
                  Log.v("MainActivity", "error: $it")
              })
  </code></pre>