Added Private scraper. Added Vixen scraper to repository.

src/argv.js

@@ -4,6 +4,16 @@ const yargs = require('yargs');
 
 const { argv } = yargs
     .command('npm start')
+    .option('networks', {
+        describe: 'Networks to include (overrides config)',
+        type: 'array',
+        alias: 'network',
+    })
+    .option('sites', {
+        describe: 'Sites to include (overrides config)',
+        type: 'array',
+        alias: 'site',
+    })
     .option('render', {
         describe: 'Fetch data without rendering interface',
         type: 'boolean',