add illustration for British vibrating button by @Cj-Malone (#2127)

app/src/main/java/de/westnordost/streetcomplete/quests/traffic_signals_vibrate/AddTrafficSignalsVibrationForm.kt

@@ -1,12 +1,23 @@
 package de.westnordost.streetcomplete.quests.traffic_signals_vibrate
 
+import android.os.Bundle
+import android.view.View
 import de.westnordost.streetcomplete.R
 import de.westnordost.streetcomplete.quests.AYesNoQuestAnswerFragment
+import kotlinx.android.synthetic.main.quest_traffic_lights_vibration.*
 
 class AddTrafficSignalsVibrationForm : AYesNoQuestAnswerFragment<Boolean>() {
 
     override val contentLayoutResId = R.layout.quest_traffic_lights_vibration
 
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        // this is necessary because the inflated image view uses the activity context rather than
+        // the fragment / layout inflater context' resources to access it's drawable
+        buttonIllustrationImageView.setImageDrawable(resources.getDrawable(R.drawable.vibrating_button_illustration))
+    }
+
     override fun onClick(answer: Boolean) { applyAnswer(answer) }
 
-}
+}

app/src/main/res/authors.txt

@@ -147,4 +147,5 @@ tourism_information_map.jpg    CC0               https://commons.wikimedia.org/w
 tourism_information_office.jpg CC-BY-SA 4.0      https://commons.wikimedia.org/wiki/File:Tourist_information_shop,_Delft_(2018).jpg (Donald Trung)
 tourism_information_termina... CC-BY 4.0         https://wiki.openstreetmap.org/wiki/File:Uh%C5%99%C3%ADn%C4%9Bves,_Nov%C3%A9_n%C3%A1m%C4%9Bst%C3%AD,_informa%C4%8Dn%C3%AD_stojan.jpg (ŠJů)
 
-vibrating_button_illustrati... CC-BY 4.0        Tobias Zwick
+vibrating_button_illustrati... CC-BY 4.0        Tobias Zwick
+vibrating_button_i... (MCC234) CC0              CJ Malone

app/src/main/res/layout/quest_traffic_lights_vibration.xml

@@ -10,6 +10,7 @@
 
 
     <ImageView
+        android:id="@+id/buttonIllustrationImageView"
         android:layout_width="120dp"
         android:layout_height="wrap_content"
         android:adjustViewBounds="true"
@@ -21,4 +22,4 @@
         android:layout_height="wrap_content"
         android:text="@string/quest_traffic_signals_vibrate_description"/>
 
-</LinearLayout>
+</LinearLayout>