WP All Export add-ons support

[junaidbhura]

Checklist:

• I've read the Contributing page.
• I've created an issue and referenced it here.
• My code is tested.
• My code follows the WordPress code style.
• My code has proper inline documentation.

Description

This fixes #30

How has this been tested?

Tested by adding this config:

{
      "type": "package",
      "package": {
        "name": "junaidbhura/wpae-acf-add-on",
        "version": "1.0.2",
        "type": "wordpress-plugin",
        "dist": {
          "type": "zip",
          "url": "https://www.wpallimport.com"
        },
        "require": {
          "junaidbhura/composer-wp-pro-plugins": "*"
        }
      }
    },
    {
      "type": "package",
      "package": {
        "name": "junaidbhura/wpae-woocommerce-add-on",
        "version": "1.0.6",
        "type": "wordpress-plugin",
        "dist": {
          "type": "zip",
          "url": "https://www.wpallimport.com"
        },
        "require": {
          "junaidbhura/composer-wp-pro-plugins": "*"
        }
      }
    }

Original PR: #29

Screenshots

Types of changes

[junaidbhura]

Hey @vaandefanel I've created this PR to fix the issue raised in #29