Make Dictionary templatable so it can be used where we want a higher capacity.

osdep/LinuxEthernetTap.cpp

@@ -95,7 +95,7 @@ LinuxEthernetTap::LinuxEthernetTap(
 	// Try to recall our last device name, or pick an unused one if that fails.
 	bool recalledDevice = false;
 	std::string devmapbuf;
-	Dictionary devmap;
+	Dictionary<8194> devmap;
 	if (OSUtils::readFile((_homePath + ZT_PATH_SEPARATOR_S + "devicemap").c_str(),devmapbuf)) {
 		devmap.load(devmapbuf.c_str());
 		char desiredDevice[128];