data: add WireGuard struct

resolves #183

data/nodeinfo.go

@@ -80,6 +80,11 @@ type Software struct {
 	StatusPage *struct {
 		API int `json:"api"`
 	} `json:"status-page,omitempty"`
+	WireGuard *struct {
+		Enabled   bool   `json:"enabled,omitempty"`
+		PublicKey string `json:"public_key,omitempty"`
+		Version   string `json:"version,omitempty"`
+	} `json:"wireguard,omitempty"`
 }
 
 // Hardware struct

data/testdata/nodeinfo.json

@@ -18,6 +18,11 @@
     },
     "status-page": {
       "api": 1
+    },
+    "wireguard": {
+      "enabled": true,
+      "public_key": "0000000000000000000000000000000000000000000=",
+      "version": "1.0.20210124"
     }
   },
   "network": {