added cli argument parser

libs/cli.js

@@ -0,0 +1,25 @@
+const logger = require('./logger.js');
+const blinkstick = require('./blinkstick.js');
+
+const ARG_CONFIG = '--config';
+const ARG_GET_SERIALS = '--get-blinksticks';
+
+async function handleArguments() {
+    let handled = 0;
+    for (let index = 0; index < process.argv.length; index++) {
+        switch (process.argv[index]) {
+            case ARG_CONFIG:
+                continue;
+            case ARG_GET_SERIALS:
+                logger.info('blinksticks: ' + JSON.stringify(await blinkstick.findBlinkstick(blinkstick.ALL)));
+                handled++;
+                break;
+        }
+    }
+    return handled > 0;
+}
+
+module.exports = {
+    handleArguments,
+    ARG_CONFIG
+};