1.0.0

This library is the result of the (re-) combination of chillerlan/php-oauth-core and chillerlan/php-oauth-providers migrated back to the original place where it started about 8 years ago. Splitting into multiple repos has proven to be a maintenance nightmare in the long run (like, are you guys okay? I've been there too...).
In addition the API has been cleaned up and streamlined and a proper documentation has been added.