[2.0.0] FS::name() returns the item name as in Arduino SD (#4892)

* FS::name() returns the item name as in Arduino SD

Added method FS::path() that returns the full path

* Adjust examples

libraries/WebServer/examples/SDWebServer/SDWebServer.ino

@@ -229,7 +229,7 @@ void printDirectory() {
     output += "{\"type\":\"";
     output += (entry.isDirectory()) ? "dir" : "file";
     output += "\",\"name\":\"";
-    output += entry.name();
+    output += entry.path();
     output += "\"";
     output += "}";
     server.sendContent(output);