ITF-14 TypeError

Hello,

I want to make ITF-14 barcode. Here is my code:

```
JsBarCode('#test', '9007901', {
format: 'ITF-14',
lineColor: '#0aa',
width: 4,
height: 40,
displayValue: false,
});
```

Result is javascript error:
```
Uncaught (in promise) TypeError: api.options(...)[options.format] is not a function
at JsBarcode2 (JsBarcode.js:76:38)
```

The 76th line of JsBarCode.js:
```
api.options(options)[options.format](text, options).render();
```

Start at JsBarcode.js line 76 and inspect how options.format is resolved against registered barcode formats. Reproduce the issue with the supplied ITF-14 example and verify the expected format name or registration path. Done means the example no longer raises the reported TypeError and produces the requested barcode.

Written by the indexing model from the issue text.