Add changelog generator tool for new supported devices page.

scripts/generateNewSupportedDevices.js

@@ -0,0 +1,10 @@
+const fs = require('fs');
+const filename = process.argv[2];
+const text = fs.readFileSync(filename, 'utf8');
+const zigbeeShepherdConverters = require('zigbee-shepherd-converters');
+
+
+for (const line of text.split('\n')) {
+    const model = zigbeeShepherdConverters.devices.find((d) => d.model === line);
+    console.log(`- \`${line}\` ${model.vendor} ${model.description}`);
+}