List of products by barcode beginning

[Nigel]

Create method getProductsByBarcodeBeginning(barcodeBeginning)
Where barcodeBeginning is a String. (It must automatically add xxxx[...])

example:

await OFF.getProductsByBarcodeBeginning('3596710')
// should fetch https://world.openfoodfacts.org/code/3596710xxxxxx.json

It must work for the following endpoint:

• https://en.wiki.openfoodfacts.org/API#List_of_barcodes_beginning_with_3596710

[Mohit Sharma]

I would like to work on this issue.