feat: add `hops_away` sort option

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

@@ -58,6 +58,7 @@ interface NodeInfoDao {
                     (position_longitude - (SELECT position_longitude FROM OurNode)) *
                     (position_longitude - (SELECT position_longitude FROM OurNode))
             END
+        WHEN :sort = 'hops_away' THEN hopsAway
         WHEN :sort = 'channel' THEN channel
         WHEN :sort = 'via_mqtt' THEN user_longName LIKE '%(MQTT)' -- viaMqtt
         ELSE 0

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

@@ -7,6 +7,7 @@ enum class NodeSortOption(val sqlValue: String, @StringRes val stringRes: Int) {
     LAST_HEARD("last_heard", R.string.node_sort_last_heard),
     ALPHABETICAL("alpha", R.string.node_sort_alpha),
     DISTANCE("distance", R.string.node_sort_distance),
+    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),
 }

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

@@ -20,6 +20,7 @@
     <string name="node_sort_alpha">A-Z</string>
     <string name="node_sort_channel">Channel</string>
     <string name="node_sort_distance">Distance</string>
+    <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>