webrtc: allow to specify ice-servers on command line

util/opts/helpers.hh

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <string>
+#include <vector>
+#include <sstream>
+
+inline std::vector<std::string> str_split(const std::string& in, const char seperator)
+{
+  std::vector<std::string> output;
+  std::istringstream stream(in);
+  for (std::string s; std::getline(stream, s, seperator); ) {
+    output.push_back(s);
+  }
+  return output;
+}