Added icon and configuration in payment_icons.yml for Mercado Pago ch…

[viniciuspquaresma]

Why are you adding this icons?

I'm adding/updating this icon(s) because our payment app uses this payment method, so we need this icon to be shown on the checkout page, hence customers can recognize it

Help us identify yourself

• I'm working/collaborating with the brand directly and they have provided the icons.
• I'm associated with the brand and I've read all the brand icon’s guidelines.
• I'm an individual and I've read all the brand icon’s guidelines.

Link to the brand guidelines:

Checklist to add new icons

• All icons have a corresponding entry in db/payment_icons.yml
• I have followed the icon guidelines detailed in the CONTRIBUTING.md file
• I have optimized the icon with SVGO
• I am confident that all icons are clear and easy to read/understand
• I have provided a link to the brand icon’s brand guidelines whenever possible.
• I have attached a screenshot comparison with the example icon provided in guidelines
• I recognize that if my icon is not approved by the Shopify Partners team it may not receive review nor merger.

If this pull request is not adding new icons, you can remove this checklist.

Attach a screenshot of the icon along side the example Visa icon

Tips how to create a screenshot

We have found free online SVG editor https://www.freecodeformat.com/svg-editor.php very useful to create one. Here is a sample code for you to verify that you icon appears properly along side the placeholder.

<!-- Change background color if needed to showcase your icon better -->
<style> body { background: black; } </style>

<!-- DO NOT DELETE EXAMPLE -->
<svg viewBox="0 0 38 24" xmlns="http://www.w3.org/2000/svg" role="img" width="38" height="24" aria-labelledby="pi-visa"><title id="pi-visa">Visa</title><path opacity=".07" d="M35 0H3C1.3 0 0 1.3 0 3v18c0 1.7 1.4 3 3 3h32c1.7 0 3-1.3 3-3V3c0-1.7-1.4-3-3-3z"/><path fill="#fff" d="M35 1c1.1 0 2 .9 2 2v18c0 1.1-.9 2-2 2H3c-1.1 0-2-.9-2-2V3c0-1.1.9-2 2-2h32"/><path d="M28.3 10.1H28c-.4 1-.7 1.5-1 3h1.9c-.3-1.5-.3-2.2-.6-3zm2.9 5.9h-1.7c-.1 0-.1 0-.2-.1l-.2-.9-.1-.2h-2.4c-.1 0-.2 0-.2.2l-.3.9c0 .1-.1.1-.1.1h-2.1l.2-.5L27 8.7c0-.5.3-.7.8-.7h1.5c.1 0 .2 0 .2.2l1.4 6.5c.1.4.2.7.2 1.1.1.1.1.1.1.2zm-13.4-.3l.4-1.8c.1 0 .2.1.2.1.7.3 1.4.5 2.1.4.2 0 .5-.1.7-.2.5-.2.5-.7.1-1.1-.2-.2-.5-.3-.8-.5-.4-.2-.8-.4-1.1-.7-1.2-1-.8-2.4-.1-3.1.6-.4.9-.8 1.7-.8 1.2 0 2.5 0 3.1.2h.1c-.1.6-.2 1.1-.4 1.7-.5-.2-1-.4-1.5-.4-.3 0-.6 0-.9.1-.2 0-.3.1-.4.2-.2.2-.2.5 0 .7l.5.4c.4.2.8.4 1.1.6.5.3 1 .8 1.1 1.4.2.9-.1 1.7-.9 2.3-.5.4-.7.6-1.4.6-1.4 0-2.5.1-3.4-.2-.1.2-.1.2-.2.1zm-3.5.3c.1-.7.1-.7.2-1 .5-2.2 1-4.5 1.4-6.7.1-.2.1-.3.3-.3H18c-.2 1.2-.4 2.1-.7 3.2-.3 1.5-.6 3-1 4.5 0 .2-.1.2-.3.2M5 8.2c0-.1.2-.2.3-.2h3.4c.5 0 .9.3 1 .8l.9 4.4c0 .1 0 .1.1.2 0-.1.1-.1.1-.1l2.1-5.1c-.1-.1 0-.2.1-.2h2.1c0 .1 0 .1-.1.2l-3.1 7.3c-.1.2-.1.3-.2.4-.1.1-.3 0-.5 0H9.7c-.1 0-.2 0-.2-.2L7.9 9.5c-.2-.2-.5-.5-.9-.6-.6-.3-1.7-.5-1.9-.5L5 8.2z" fill="#142688"/></svg>

<!-- TODO: insert your icon here -->
<YOUR SVG CODE>

<br>
<!-- TODO: insert your icon here -->
<YOUR SVG CODE>
</br

If the icons are intended for use by Shopify, please provide the following info:

Who are you working with at Shopify? (avoid adding personal details, provide github handle(preferred) or first name and last name)
viniciuspquaresma

What's the expected date of this change to deploy on Shopify?
July, 13