Remote XML Import / Sync Products

This addon reads a remote source file and adds/updates the matching product by the map.

• Simple mapping will be needed.
• Unchanged product stocks will be set to 0 after completion.
• Product-id or SKU will be used to find existing product.
• XML file is supported only for now, CSV is coming soon.
• Litecart jobs exists but it is working with remote request and cloudflare etc may give timeout so using separated cron job of this addon will be advised.
• Disabling, clearing cache, on each save; will increase speed a lot but. `cache-clear-or-not-on-product-save` activating the vmod is advised.

  Cron Commands:

  #- default importer
  05 12 * * * php cronJob-importer.php

  #- when needed to have different kind of logic
  #- disabler ( On stock setting 0 is disabled, this can be used. This will only set stocks to zero. )
  00 00 * * * php cronJob-disabler.php

  #- updater ( On updated is disabled, this can be used. This will only update products. )
  05 */6 * * * php cronJob-updater.php

  #- with disabled, update and setting stock zero configs 
  05 12 * * * php cronJob-importer.php

Suggested addons
- https://www.litecart.net/en/addons/462/hide-products-from-site-map
- https://www.litecart.net/en/addons/463/cache-sitemap
- https://www.litecart.net/tr/addons/461/add-manufacturers-to-site-map
- https://www.litecart.net/tr/addons/660/cache-clear-or-not-on-product-save