feat: Allow sorting by favorite nodes (#1700)

app/src/main/java/com/geeksville/mesh/database/dao/NodeInfoDao.kt

@@ -92,6 +92,7 @@ interface NodeInfoDao {
             END
         WHEN :sort = 'channel' THEN channel
         WHEN :sort = 'via_mqtt' THEN via_mqtt
+        WHEN :sort = 'via_favorite' THEN is_favorite * -1
         ELSE 0
     END ASC,
     last_heard DESC

app/src/main/java/com/geeksville/mesh/model/SortOption.kt

@@ -27,4 +27,5 @@ enum class NodeSortOption(val sqlValue: String, @StringRes val stringRes: Int) {
     HOPS_AWAY("hops_away", R.string.node_sort_hops_away),
     CHANNEL("channel", R.string.node_sort_channel),
     VIA_MQTT("via_mqtt", R.string.node_sort_via_mqtt),
+    VIA_FAVORITE("via_favorite", R.string.node_sort_via_favorite),
 }

app/src/main/res/values/strings.xml

@@ -30,6 +30,7 @@
     <string name="node_sort_hops_away">Hops away</string>
     <string name="node_sort_last_heard">Last heard</string>
     <string name="node_sort_via_mqtt">via MQTT</string>
+    <string name="node_sort_via_favorite">via Favorite</string>
 
     <string name="unrecognized">Unrecognized</string>
     <string name="message_status_enroute">Waiting to be acknowledged</string>