ci-phpunit-test for CodeIgniter 3.0

I've just released v0.10.0: https://github.com/kenjis/ci-phpunit-test/releases

This includes BC break according to bug fix.

* Now reset_instance() removes the existing CodeIgniter instance.
* Now $this->getDouble() does not call the original constructor by default.

The changes may break your test code. If so, please fix or update your tests.

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper