adds utility-pole icon (#971)

Co-authored-by: Karsa <karsa@karsa.org>

icons/utility-pole.json

@@ -0,0 +1,14 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "electricity",
+    "energy",
+    "transmission line",
+    "telegraph pole"
+  ],
+  "categories": [
+    "buildings",
+    "home",
+    "sustainability"
+  ]
+}

icons/utility-pole.svg

@@ -0,0 +1,19 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M12 2v20" />
+  <path d="M2 5h20" />
+  <path d="M3 3v2" />
+  <path d="M7 3v2" />
+  <path d="M17 3v2" />
+  <path d="M21 3v2" />
+  <path d="m19 5-7 7-7-7" />
+</svg>