Add support to phpdocumentor/reflection-docblock:^5.0 (#100)
Add support to phpdocumentor/reflection-docblock:^5.0 (#100)

* phpdocumentor/reflection-docblock ^5.0

Upgrade to phpdocumentor/reflection-docblock ^5.0, all tests pass

* Revert documentation changes.

Co-authored-by: Arlina Espinoza <068676785de541ed884661e74d61b634561ca100@gmail.com>
apigee/apigee-client-php