Refined network management (#1672)

This PR implements several refinements to the way that NetworkManager
controls the network interface.

- The monitor detects and logs changes to the network address
- The monitor detects and logs changes to the connection and will
reinitialize the connection if needed
- Remove NetworkInterface.java class, which wasn't used anywhere
- Use java.net.NetworkInterface to get IP addresses for any interface
(device)
- Adds a metric for the current IP address (address on the currently
selected interface)

photon-client/src/components/cameras/CameraCalibrationCard.vue

@@ -242,7 +242,7 @@ const setSelectedVideoFormat = (format: VideoFormat) => {
                 <td>{{ value.verticalFOV !== undefined ? value.verticalFOV.toFixed(2) + "°" : "-" }}</td>
                 <td>{{ value.diagonalFOV !== undefined ? value.diagonalFOV.toFixed(2) + "°" : "-" }}</td>
                 <v-tooltip bottom>
-                  <template v-slot:activator="{ on, attrs }">
+                  <template #activator="{ on, attrs }">
                     <td v-bind="attrs" v-on="on" @click="setSelectedVideoFormat(value)">
                       <v-icon small class="mr-2">mdi-information</v-icon>
                     </td>

photon-client/src/components/settings/MetricsCard.vue

@@ -9,24 +9,36 @@ interface MetricItem {
   value?: string;
 }
 
-const generalMetrics = computed<MetricItem[]>(() => [
-  {
-    header: "Version",
-    value: useSettingsStore().general.version || "Unknown"
-  },
-  {
-    header: "Hardware Model",
-    value: useSettingsStore().general.hardwareModel || "Unknown"
-  },
-  {
-    header: "Platform",
-    value: useSettingsStore().general.hardwarePlatform || "Unknown"
-  },
-  {
-    header: "GPU Acceleration",
-    value: useSettingsStore().general.gpuAcceleration || "Unknown"
+const generalMetrics = computed<MetricItem[]>(() => {
+  const stats = [
+    {
+      header: "Version",
+      value: useSettingsStore().general.version || "Unknown"
+    },
+    {
+      header: "Hardware Model",
+      value: useSettingsStore().general.hardwareModel || "Unknown"
+    },
+    {
+      header: "Platform",
+      value: useSettingsStore().general.hardwarePlatform || "Unknown"
+    },
+
+    {
+      header: "GPU Acceleration",
+      value: useSettingsStore().general.gpuAcceleration || "Unknown"
+    }
+  ];
+
+  if (!useSettingsStore().network.networkingDisabled) {
+    stats.push({
+      header: "IP Address",
+      value: useSettingsStore().metrics.ipAddress || "Unknown"
+    });
   }
-]);
+
+  return stats;
+});
 
 const platformMetrics = computed<MetricItem[]>(() => {
   const stats = [