Enhance compliments remote file with refresh support (#3630)

add support to refresh the compliments remotefile
add testcases for both without refresh (testcase missing) and with
refresh

doc to be updated

tests/configs/modules/compliments/compliments_file_change.js

@@ -0,0 +1,19 @@
+let config = {
+	address: "0.0.0.0",
+	ipWhitelist: [],
+	modules: [
+		{
+			module: "compliments",
+			position: "bottom_bar",
+			config: {
+				updateInterval: 3000,
+				remoteFileRefreshInterval: 1500,
+				remoteFile: "http://localhost:8080/tests/mocks/compliments_test.json",
+				remoteFile2: "http://localhost:8080/tests/mocks/compliments_file.json"
+			}
+		}
+	]
+};
+
+/*************** DO NOT EDIT THE LINE BELOW ***************/
+if (typeof module !== "undefined") { module.exports = config; }