PSR interfaces extension

[John Boehr]

Hello,

I've been working on a PHP extension that provides the PSR interfaces. I was hoping to submit it to PECL, however I figured it might be proper to check in here first. The code is available here:

https://github.com/jbboehr/php-psr

and a reference usage is here:

https://github.com/jbboehr/php-handlebars/blob/v0.7.1/impl.c#L213-L215

Any questions or feedback is welcome.

Best Regards,

John Boehr