Add composer file for wordpress-theme install

[justinpage]

Let's support composer installers for multi-framework support in wordpress.
By doing so, we have the ability to define a custom themes folder and bring this
as a dependency to build upon. This also makes it easier on
build/deploy processes where we don't have to worry about controlling a parent
theme folder that is being maintained by someone else.

For more info: https://github.com/composer/installers

[justinpage]

@olefredrik thanks! I'm going to pass on ownership to you for https://packagist.org/packages/olefredrik/foundationpress

This will allow those to leverage the composer feature.

[justinpage]

@olefredrik actually, I can't add you as maintainer until you have an account registered at packagist.org.
Once you do, I'll add you. I will suggest to add an auto-update hook in this repo so all you have to worry about is just pushing and pulling on here. The listener on packagist will do the rest.

Thanks again!

[olefredrik]

Awesome, @KLVTZ ! I'm currently on vacation with a sloppy internet connection on my phone. Will look into this and create a packagist account as soon as I'm back next week. I'll keep in touch. Thanks!

[justinpage]

👍

[olefredrik]

Hi. My username on packagist.org is olefredrik.

[justinpage]

Added you as maintainer, you will need to remove me as maintainer in the upper-right sidebar in order to complete the process. Also, you will need to add the hook within this repos settings for auto-updates.

[olefredrik]

Sweet! Added the service hook in the repo seetings. Seems to work fine. Thanks!