feat: Geräte/Stations-Marker werden nur für Systeme mit Allow=1 angezeigt

- Geräte mit Allow=0 in GisSystemStatic werden auf der Karte ausgeblendet
- Daten bleiben unverändert, nur die Anzeige/Zeichnung ist

websocketDump/GisSystemStatic.json

@@ -3,14 +3,14 @@
     "IdSystem": 1,
     "Name": "TALAS",
     "Longname": "Talas Meldestationen",
-    "Allow": 0,
+    "Allow": 1,
     "Icon": 1
   },
   {
     "IdSystem": 2,
     "Name": "ECI",
     "Longname": "ECI Geräte",
-    "Allow": 1,
+    "Allow": 0,
     "Icon": 2
   },
   {
@@ -24,91 +24,91 @@
     "IdSystem": 5,
     "Name": "GSM Modem",
     "Longname": "LR77 GSM Modems",
-    "Allow": 1,
+    "Allow": 0,
     "Icon": 5
   },
   {
     "IdSystem": 6,
     "Name": "Cisco Router",
     "Longname": "Cisco Router",
-    "Allow": 1,
+    "Allow": 0,
     "Icon": 6
   },
   {
     "IdSystem": 7,
     "Name": "WAGO",
     "Longname": "WAGO I/O Systeme",
-    "Allow": 1,
+    "Allow": 0,
     "Icon": 7
   },
   {
     "IdSystem": 8,
     "Name": "Siemens",
     "Longname": "Siemens Notrufsysteme",
-    "Allow": 1,
+    "Allow": 0,
     "Icon": 8
   },
   {
     "IdSystem": 9,
     "Name": "OTDR",
     "Longname": "Glasfaserüberwachung OTU",
-    "Allow": 1,
+    "Allow": 0,
     "Icon": 9
   },
   {
     "IdSystem": 10,
     "Name": "WDM",
     "Longname": " Wavelength Division Multiplexing",
-    "Allow": 1,
+    "Allow": 0,
     "Icon": 10
   },
   {
     "IdSystem": 11,
     "Name": "GMA",
     "Longname": "Glättemeldeanlagen",
-    "Allow": 1,
+    "Allow": 0,
     "Icon": 11
   },
   {
     "IdSystem": 13,
     "Name": "Messstellen",
     "Longname": "Messstellen",
-    "Allow": 1,
+    "Allow": 0,
     "Icon": 13
   },
   {
     "IdSystem": 30,
     "Name": "TK-Komponenten",
     "Longname": "TK-Komponenten",
-    "Allow": 1,
+    "Allow": 0,
     "Icon": 30
   },
   {
     "IdSystem": 100,
     "Name": "TALAS ICL",
     "Longname": "Talas ICL Unterstationen",
-    "Allow": 1,
+    "Allow": 0,
     "Icon": 100
   },
   {
     "IdSystem": 110,
     "Name": "DAUZ",
     "Longname": "Dauerzählstellen",
-    "Allow": 1,
+    "Allow": 0,
     "Icon": 110
   },
   {
     "IdSystem": 111,
     "Name": "SMS Modem",
     "Longname": "SMS Modem",
-    "Allow": 1,
+    "Allow": 0,
     "Icon": 111
   },
   {
     "IdSystem": 200,
     "Name": "Sonstige",
     "Longname": "Sonstige",
-    "Allow": 1,
+    "Allow": 0,
     "Icon": 200
   }
 ]